trx: Fix tx/rx-sps 4 for USRP1 devices

The existing code sets the pingOffset variable to -7231(269 - 7500)
with tx-sps = 4. The (apparent) correct value for pingOffset for
tx/rx-sps 4 is 272.

While I'm not completely sure how this patch works to fix the increased
sps value, my theory is that the original OpenBTS TRX  only supported
a split sps setup(tx-sps=4, rx_sps=1 for sps=4), which created
differing decimation rates between Tx and Rx on the board.
In this case, apparently you needed to account for an advance in the
timestamp for a correct output.

With tx_sps == rx_sps, the decimation/sample rates will be the same,
and(I guess) this advance doesn't need to be accounted for.

Also changed a line in the initialization of the Rx end of the USRP
device to use the correct decimation rate when tx/rx-sps == 4.

Since osmo-trx won't allow nonequal values for tx-sps and rx-sps, I
commented out the logic that selected pingOffset based on sps.
I left it visible in the file for reference however.

Tested & working on the URAN-1, a USRP1 clone designed for GSM.

Change-Id: I3b08c23a3e7d4a226cd23b9fe42558f596a63257

.checkpatch.conf

@@ -1,4 +1,5 @@
 --exclude osmocom-bb/.*
 --exclude .*h
 --exclude Transceiver52M/grgsm_vitac/.*
+--exclude utils/va-test/.*
 --ignore FUNCTION_WITHOUT_ARGS

.clang-format

@@ -25,7 +25,7 @@ AllowShortLoopsOnASingleLine: false
 AlwaysBreakAfterDefinitionReturnType: None
 AlwaysBreakAfterReturnType: None
 AlwaysBreakBeforeMultilineStrings: false
-AlwaysBreakTemplateDeclarations: false
+AlwaysBreakTemplateDeclarations: true
 BinPackArguments: true
 BinPackParameters: true
 BraceWrapping:

.github/FUNDING.yml

@@ -0,0 +1 @@
+open_collective: osmocom

.gitignore

@@ -38,6 +38,7 @@ Transceiver52M/device/ipc/ipc-driver-test
 .deps
 .libs
 .dirstamp
+.version
 *~
 Makefile
 config.log
@@ -83,6 +84,7 @@ contrib/osmo-trx.spec
 !contrib/osmo-trx.spec.in
 
 utils/osmo-prbs-tool
+utils/va-test/osmo-burst-gen
 /.qtc_clangd/*
 /.cache/*
 /.vscode/*

CommonLibs/Makefile.am

@@ -22,8 +22,8 @@
 include $(top_srcdir)/Makefile.common
 
 AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES)
-AM_CXXFLAGS = -Wall -O3 -g -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
-AM_CFLAGS = $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+AM_CXXFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+AM_CFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
 
 noinst_LTLIBRARIES = libcommon.la
 
@@ -37,7 +37,12 @@ libcommon_la_SOURCES = \
 	trx_rate_ctr.cpp \
 	trx_vty.c \
 	debug.c
-libcommon_la_LIBADD = $(LIBOSMOCORE_LIBS) $(LIBOSMOCTRL_LIBS) $(LIBOSMOVTY_LIBS)
+libcommon_la_LIBADD = \
+	$(LIBOSMOCORE_LIBS) \
+	$(LIBOSMOCTRL_LIBS) \
+	$(LIBOSMOVTY_LIBS) \
+	-lpthread \
+	$(NULL)
 
 noinst_HEADERS = \
 	BitVector.h \

CommonLibs/Utils.cpp

@@ -28,7 +28,7 @@ std::vector<std::string> comma_delimited_to_vector(const char* opt)
 	{
 	    std::string substr;
 	    getline(ss, substr, ',');
-	    result.push_back(substr);
+	    result.push_back(std::move(substr));
 	}
 	return result;
 }

CommonLibs/config_defs.h

@@ -57,4 +57,15 @@ struct trx_cfg {
 	unsigned int stack_size;
 	unsigned int num_chans;
 	struct trx_chan chans[TRX_CHAN_MAX];
+	struct {
+		bool ul_freq_override;
+		bool dl_freq_override;
+		bool ul_gain_override;
+		bool dl_gain_override;
+		double ul_freq;
+		double dl_freq;
+		double ul_gain;
+		double dl_gain;
+	} overrides;
+	bool use_va;
 };

CommonLibs/trx_vty.c

@@ -285,6 +285,79 @@ DEFUN_ATTR(cfg_ul_fn_offset, cfg_ul_fn_offset_cmd,
 	return CMD_SUCCESS;
 }
 
+DEFUN_ATTR(cfg_ul_freq_override, cfg_ul_freq_override_cmd,
+	   "ul-freq-override FLOAT",
+	   "Overrides Rx carrier frequency\n"
+	   "Frequency in Hz (e.g. 145300000)\n",
+	   CMD_ATTR_HIDDEN)
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.overrides.ul_freq_override = true;
+	trx->cfg.overrides.ul_freq = atof(argv[0]);
+
+	return CMD_SUCCESS;
+}
+DEFUN_ATTR(cfg_dl_freq_override, cfg_dl_freq_override_cmd,
+	   "dl-freq-override FLOAT",
+	   "Overrides Tx carrier frequency\n"
+	   "Frequency in Hz (e.g. 145300000)\n",
+	   CMD_ATTR_HIDDEN)
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.overrides.dl_freq_override = true;
+	trx->cfg.overrides.dl_freq = atof(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN_ATTR(cfg_ul_gain_override, cfg_ul_gain_override_cmd,
+	   "ul-gain-override FLOAT",
+	   "Overrides Rx gain\n"
+	   "gain in dB\n",
+	   CMD_ATTR_HIDDEN)
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.overrides.ul_gain_override = true;
+	trx->cfg.overrides.ul_gain = atof(argv[0]);
+
+	return CMD_SUCCESS;
+}
+DEFUN_ATTR(cfg_dl_gain_override, cfg_dl_gain_override_cmd,
+	   "dl-gain-override FLOAT",
+	   "Overrides Tx gain\n"
+	   "gain in dB\n",
+	   CMD_ATTR_HIDDEN)
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.overrides.dl_gain_override = true;
+	trx->cfg.overrides.dl_gain = atof(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN_ATTR(cfg_use_viterbi, cfg_use_viterbi_cmd,
+	"viterbi-eq (disable|enable)",
+	"Use viterbi equalizer for gmsk (default=disable)\n"
+	"Disable VA\n"
+	"Enable VA\n",
+	CMD_ATTR_HIDDEN)
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (strcmp("disable", argv[0]) == 0)
+		trx->cfg.use_va = false;
+	else if (strcmp("enable", argv[0]) == 0)
+		trx->cfg.use_va = true;
+	else
+		return CMD_WARNING;
+
+	return CMD_SUCCESS;
+}
+
 DEFUN(cfg_swap_channels, cfg_swap_channels_cmd,
 	"swap-channels (disable|enable)",
 	"Swap primary and secondary channels of the PHY (if any)\n"
@@ -466,7 +539,6 @@ DEFUN_ATTR(cfg_ctr_error_threshold, cfg_ctr_error_threshold_cmd,
 	int rc;
 	struct ctr_threshold ctr;
 
-	struct trx_ctx *trx = trx_from_vty(vty);
 	rc = vty_ctr_name_2_id(argv[0]);
 	if (rc < 0) {
 		vty_out(vty, "No valid ctr_name found for ctr-error-threshold %s%s",
@@ -498,7 +570,6 @@ DEFUN_ATTR(cfg_no_ctr_error_threshold, cfg_no_ctr_error_threshold_cmd,
 	int rc;
 	struct ctr_threshold ctr;
 
-	struct trx_ctx *trx = trx_from_vty(vty);
 	rc = vty_ctr_name_2_id(argv[0]);
 	if (rc < 0) {
 		vty_out(vty, "No valid ctr_name found for ctr-error-threshold %s%s",
@@ -609,7 +680,7 @@ static int config_write_trx(struct vty *vty)
 		vty_out(vty, " remote-ip %s%s", trx->cfg.remote_addr, VTY_NEWLINE);
 	if (trx->cfg.base_port != DEFAULT_TRX_PORT)
 		vty_out(vty, " base-port %u%s", trx->cfg.base_port, VTY_NEWLINE);
-	if (trx->cfg.dev_args)
+	if (strlen(trx->cfg.dev_args))
 		vty_out(vty, " dev-args %s%s", trx->cfg.dev_args, VTY_NEWLINE);
 	if (trx->cfg.tx_sps != DEFAULT_TX_SPS)
 		vty_out(vty, " tx-sps %u%s", trx->cfg.tx_sps, VTY_NEWLINE);
@@ -640,6 +711,16 @@ static int config_write_trx(struct vty *vty)
 		vty_out(vty, " stack-size %u%s", trx->cfg.stack_size, VTY_NEWLINE);
 	if (trx->cfg.ul_fn_offset != 0)
 		vty_out(vty, " ul-fn-offset %d%s", trx->cfg.ul_fn_offset, VTY_NEWLINE);
+	if (trx->cfg.overrides.dl_freq_override)
+		vty_out(vty, " dl-freq-override %f%s", trx->cfg.overrides.dl_freq, VTY_NEWLINE);
+	if (trx->cfg.overrides.ul_freq_override)
+		vty_out(vty, " ul-freq-override %f%s", trx->cfg.overrides.ul_freq, VTY_NEWLINE);
+	if (trx->cfg.overrides.dl_gain_override)
+		vty_out(vty, " dl-gain-override %f%s", trx->cfg.overrides.dl_gain, VTY_NEWLINE);
+	if (trx->cfg.overrides.ul_gain_override)
+		vty_out(vty, " ul-gain-override %f%s", trx->cfg.overrides.ul_gain, VTY_NEWLINE);
+	if (trx->cfg.use_va)
+		vty_out(vty, " viterbi-eq %s%s", trx->cfg.use_va ? "enable" : "disable", VTY_NEWLINE);
 	trx_rate_ctr_threshold_write_config(vty, " ");
 
 	for (i = 0; i < trx->cfg.num_chans; i++) {
@@ -700,17 +781,6 @@ DEFUN(show_trx, show_trx_cmd,
 	return CMD_SUCCESS;
 }
 
-static int trx_vty_is_config_node(struct vty *vty, int node)
-{
-	switch (node) {
-	case TRX_NODE:
-	case CHAN_NODE:
-		return 1;
-	default:
-		return 0;
-	}
-}
-
 static int trx_vty_go_parent(struct vty *vty)
 {
 	switch (vty->node) {
@@ -748,7 +818,6 @@ struct vty_app_info g_vty_info = {
 	.version	= PACKAGE_VERSION,
 	.copyright	= trx_copyright,
 	.go_parent_cb	= trx_vty_go_parent,
-	.is_config_node	= trx_vty_is_config_node,
 };
 
 struct trx_ctx *vty_trx_ctx_alloc(void *talloc_ctx)
@@ -762,6 +831,7 @@ struct trx_ctx *vty_trx_ctx_alloc(void *talloc_ctx)
 	trx->cfg.rx_sps = DEFAULT_RX_SPS;
 	trx->cfg.filler = FILLER_ZERO;
 	trx->cfg.rssi_offset = 0.0f;
+	trx->cfg.dev_args = talloc_strdup(trx, "");
 
 	return trx;
 }
@@ -804,6 +874,11 @@ int trx_vty_init(struct trx_ctx* trx)
 
 	install_element(TRX_NODE, &cfg_chan_cmd);
 	install_element(TRX_NODE, &cfg_ul_fn_offset_cmd);
+	install_element(TRX_NODE, &cfg_ul_freq_override_cmd);
+	install_element(TRX_NODE, &cfg_dl_freq_override_cmd);
+	install_element(TRX_NODE, &cfg_ul_gain_override_cmd);
+	install_element(TRX_NODE, &cfg_dl_gain_override_cmd);
+	install_element(TRX_NODE, &cfg_use_viterbi_cmd);
 	install_node(&chan_node, dummy_config_write);
 	install_element(CHAN_NODE, &cfg_chan_rx_path_cmd);
 	install_element(CHAN_NODE, &cfg_chan_tx_path_cmd);

GSM/GSMCommon.cpp

@@ -55,12 +55,15 @@ const BitVector GSM::gEdgeTrainingSequence[] = {
 };
 
 const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000");
+const BitVector GSM::gDummyBurstTSC("01110001011100010111000101");
 
 /* 3GPP TS 05.02, section 5.2.7 "Access burst (AB)", synch. sequence bits */
 const BitVector GSM::gRACHSynchSequenceTS0("01001011011111111001100110101010001111000");  /* GSM, GMSK (default) */
 const BitVector GSM::gRACHSynchSequenceTS1("01010100111110001000011000101111001001101");  /* EGPRS, 8-PSK */
 const BitVector GSM::gRACHSynchSequenceTS2("11101111001001110101011000001101101110111");  /* EGPRS, GMSK */
 
+const BitVector GSM::gSCHSynchSequence("1011100101100010000001000000111100101101010001010111011000011011");
+
 //                               |-head-||---------midamble----------------------||--------------data----------------||t|
 const BitVector GSM::gRACHBurst("0011101001001011011111111001100110101010001111000110111101111110000111001001010110011000");
 

GSM/GSMCommon.h

@@ -52,11 +52,16 @@ extern const BitVector gEdgeTrainingSequence[];
 
 /** C0T0 filler burst, GSM 05.02, 5.2.6 */
 extern const BitVector gDummyBurst;
+extern const BitVector gDummyBurstTSC;
 
 /** Random access burst synch. sequence */
 extern const BitVector gRACHSynchSequenceTS0;
 extern const BitVector gRACHSynchSequenceTS1;
 extern const BitVector gRACHSynchSequenceTS2;
+
+/** Synchronization burst sync sequence */
+extern const BitVector gSCHSynchSequence;
+
 /** Random access burst synch. sequence, GSM 05.02 5.2.7 */
 extern const BitVector gRACHBurst;
 

Makefile.am

@@ -43,12 +43,19 @@ SUBDIRS += \
 	doc \
 	$(NULL)
 
+BUILT_SOURCES = $(top_srcdir)/.version
+$(top_srcdir)/.version:
+	echo $(VERSION) > $@-t && mv $@-t $@
+dist-hook:
+	echo $(VERSION) > $(distdir)/.tarball-version
+
 EXTRA_DIST = \
+	.version \
 	LEGAL \
 	COPYING \
 	README.md \
-	contrib/osmo-trx.spec.in \
 	debian \
+	git-version-gen \
 	$(NULL)
 
 AM_DISTCHECK_CONFIGURE_FLAGS = \

README.md

@@ -4,17 +4,17 @@ About OsmoTRX
 OsmoTRX is a software-defined radio transceiver that implements the Layer 1
 physical layer of a BTS comprising the following 3GPP specifications:
 
-* TS 05.01 "Physical layer on the radio path"
-* TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
-* TS 05.04 "Modulation"
-* TS 05.10 "Radio subsystem synchronization"
+* TS 05.01 *Physical layer on the radio path*
+* TS 05.02 *Multiplexing and Multiple Access on the Radio Path*
+* TS 05.04 *Modulation*
+* TS 05.10 *Radio subsystem synchronization*
 
 OsmoTRX is originally based on the transceiver code from the
 [OpenBTS](https://osmocom.org/projects/osmobts/wiki/OpenBTS) project, but setup
 to operate independently with the purpose of using with non-OpenBTS software and
 projects, specifically within the Osmocom stack.  Used together with
 [OsmoBTS](https://osmocom.org/projects/osmobts/wiki) you can get a pretty
-standard GSM BTS with Abis interface as per the relevant 3GPP specifications.
+standard GSM/GPRS/EGPRS BTS with Abis interface as per the relevant 3GPP specifications.
 
 Homepage
 --------
@@ -27,7 +27,7 @@ GIT Repository
 
 You can clone from the official osmo-trx.git repository using
 
-        git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-trx`
+        git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-trx
 
 There is a web interface at <https://gitea.osmocom.org/cellular-infrastructure/osmo-trx>
 
@@ -39,6 +39,13 @@ also available online for each of the sub-libraries at User Manual for OsmoTRX
 can be generated during the build process, and is also available online at
 <https://ftp.osmocom.org/docs/latest/osmotrx-usermanual.pdf>.
 
+Forum
+-----
+
+We welcome any osmo-trx related discussions in the
+[Cellular Network Infrastructure -> 2 RAN (GERAN)](https://discourse.osmocom.org/c/cni/geran)
+section of the osmocom discourse (web based Forum).
+
 Mailing List
 ------------
 
@@ -50,13 +57,20 @@ Please observe the [Osmocom Mailing List
 Rules](https://osmocom.org/projects/cellular-infrastructure/wiki/Mailing_List_Rules)
 when posting.
 
+Issue Tracker
+-------------
+
+We use the [issue tracker of the osmo-trx project on osmocom.org](https://osmocom.org/projects/osmotrx/issues) for
+tracking the state of bug reports and feature requests.  Feel free to submit any issues you may find, or help
+us out by resolving existing issues.
+
 Contributing
 ------------
 
 Our coding standards are described at
 <https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards>
 
-We us a gerrit based patch submission/review process for managing contributions.
+We use a Gerrit based patch submission/review process for managing contributions.
 Please see <https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit>
 for more details
 

TODO-RELEASE

@@ -0,0 +1,9 @@
+# When cleaning up this file: bump API version in corresponding Makefile.am and rename corresponding debian/lib*.install
+# according to https://osmocom.org/projects/cellular-infrastructure/wiki/Make_a_new_release
+# In short: https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html#Updating-version-info
+# LIBVERSION=c:r:a
+# If the library source code has changed at all since the last update, then increment revision: c:r + 1:a.
+# If any interfaces have been added, removed, or changed since the last update: c + 1:0:a.
+# If any interfaces have been added since the last public release: c:r:a + 1.
+# If any interfaces have been removed or changed since the last public release: c:r:0.
+#library	what			description / commit summary line

Transceiver52M/Complex.h

@@ -29,7 +29,7 @@ unlike the built-in complex<> templates, these inline most operations for speed
 template<class Real> class Complex {
 
 public:
-
+  typedef Real value_type;
   Real r, i;
 
   /**@name constructors */

Transceiver52M/Makefile.am

@@ -40,7 +40,9 @@ COMMON_SOURCES = \
 	ChannelizerBase.cpp \
 	Channelizer.cpp \
 	Synthesis.cpp \
-	proto_trxd.c
+	proto_trxd.c \
+	grgsm_vitac/grgsm_vitac.cpp \
+	grgsm_vitac/viterbi_detector.cc
 
 libtransceiver_common_la_SOURCES = \
 	$(COMMON_SOURCES) \
@@ -80,23 +82,34 @@ AM_CPPFLAGS += -I${srcdir}
 TRXCON_LDADD = \
 	$(top_builddir)/osmocom-bb/src/host/trxcon/src/.libs/libtrxcon.a \
 	$(top_builddir)/osmocom-bb/src/host/trxcon/src/.libs/libl1sched.a \
+	$(top_builddir)/osmocom-bb/src/host/trxcon/src/.libs/libl1gprs.a \
 	$(LIBOSMOCODING_LIBS)
 
-MS_SOURCES = \
+MS_LOWER_SRC = \
 	ms/sch.c \
 	ms/ms.cpp \
+	ms/threadsched.cpp \
 	ms/ms_rx_lower.cpp \
 	grgsm_vitac/grgsm_vitac.cpp \
 	grgsm_vitac/viterbi_detector.cc
 
+MS_UPPER_SRC = \
+	ms/ms_upper.cpp \
+	ms/l1ctl_server.c \
+	ms/logging.c \
+	ms/l1ctl_server_cb.cpp \
+	ms/ms_trxcon_if.cpp
+
 noinst_HEADERS += \
    	ms/ms.h \
+	ms/threadsched.h \
 	ms/bladerf_specific.h \
 	ms/uhd_specific.h \
-	ms/ms_rx_burst.h \
 	ms/ms_upper.h \
+	ms/ms_trxcon_if.h \
 	ms/itrq.h \
 	ms/sch.h \
+	ms/threadpool.h \
 	grgsm_vitac/viterbi_detector.h \
 	grgsm_vitac/constants.h \
 	grgsm_vitac/grgsm_vitac.h
@@ -114,25 +127,16 @@ osmo_trx_uhd_LDADD = \
 	$(UHD_LIBS)
 osmo_trx_uhd_CPPFLAGS  = $(AM_CPPFLAGS) $(UHD_CFLAGS)
 
-if ENABLE_MS_TRX
-bin_PROGRAMS += osmo-trx-ms-uhd
-osmo_trx_ms_uhd_SOURCES = $(MS_SOURCES) ms/ms_upper.cpp ms/l1ctl_server.c ms/logging.c ms/l1ctl_server_cb.cpp
-osmo_trx_ms_uhd_LDADD = \
-	$(builddir)/device/uhd/libdevice.la \
-	$(COMMON_LDADD) \
-	$(UHD_LIBS) \
-	$(TRXCON_LDADD)
-osmo_trx_ms_uhd_CPPFLAGS  = $(AM_CPPFLAGS) $(UHD_CFLAGS) -DBUILDUHD
-
-bin_PROGRAMS += osmo-trx-syncthing-uhd
-osmo_trx_syncthing_uhd_SOURCES = $(MS_SOURCES) ms/ms_rx_burst_test.cpp
-osmo_trx_syncthing_uhd_LDADD = \
-	$(builddir)/device/uhd/libdevice.la \
-	$(COMMON_LDADD) \
-	$(UHD_LIBS) \
-	$(TRXCON_LDADD)
-osmo_trx_syncthing_uhd_CPPFLAGS  = $(AM_CPPFLAGS) $(UHD_CFLAGS) -DSYNCTHINGONLY -DBUILDUHD
-endif
+#if ENABLE_MS_TRX
+#bin_PROGRAMS += osmo-trx-ms-uhd
+#osmo_trx_ms_uhd_SOURCES = $(MS_LOWER_SRC) $(MS_UPPER_SRC)
+#osmo_trx_ms_uhd_LDADD = \
+#	$(builddir)/device/uhd/libdevice.la \
+#	$(COMMON_LDADD) \
+#	$(UHD_LIBS) \
+#	$(TRXCON_LDADD)
+#osmo_trx_ms_uhd_CPPFLAGS  = $(AM_CPPFLAGS) $(UHD_CFLAGS) -DBUILDUHD
+#endif
 endif
 
 if DEVICE_USRP1
@@ -166,22 +170,13 @@ osmo_trx_blade_CPPFLAGS  = $(AM_CPPFLAGS) $(LMS_CFLAGS)
 
 if ENABLE_MS_TRX
 bin_PROGRAMS += osmo-trx-ms-blade
-osmo_trx_ms_blade_SOURCES = $(MS_SOURCES) ms/ms_upper.cpp ms/l1ctl_server.c ms/logging.c ms/l1ctl_server_cb.cpp
+osmo_trx_ms_blade_SOURCES = $(MS_LOWER_SRC) $(MS_UPPER_SRC)
 osmo_trx_ms_blade_LDADD = \
 	$(builddir)/device/bladerf/libdevice.la \
 	$(COMMON_LDADD) \
 	$(BLADE_LIBS) \
 	$(TRXCON_LDADD)
 osmo_trx_ms_blade_CPPFLAGS  = $(AM_CPPFLAGS) $(BLADE_CFLAGS) -DBUILDBLADE
-
-bin_PROGRAMS += osmo-trx-syncthing-blade
-osmo_trx_syncthing_blade_SOURCES = $(MS_SOURCES) ms/ms_rx_burst_test.cpp
-osmo_trx_syncthing_blade_LDADD =  \
-	$(builddir)/device/bladerf/libdevice.la \
-	$(COMMON_LDADD) \
-	$(BLADE_LIBS) \
-	$(TRXCON_LDADD)
-osmo_trx_syncthing_blade_CPPFLAGS  = $(AM_CPPFLAGS) $(BLADE_CFLAGS) -DSYNCTHINGONLY -DBUILDBLADE -I../device/ipc
 endif
 endif
 

Transceiver52M/Resampler.cpp

@@ -32,7 +32,7 @@ extern "C" {
 #define M_PI			3.14159265358979323846264338327f
 #endif
 
-#define MAX_OUTPUT_LEN		4096
+#define MAX_OUTPUT_LEN		4096*4
 
 using namespace std;
 

Transceiver52M/Transceiver.cpp

@@ -29,6 +29,7 @@
 #include <fstream>
 #include "Transceiver.h"
 #include <Logger.h>
+#include <grgsm_vitac/grgsm_vitac.h>
 
 extern "C" {
 #include "osmo_signal.h"
@@ -208,6 +209,8 @@ bool Transceiver::init()
     return false;
   }
 
+  initvita();
+
   mDataSockets.resize(mChans, -1);
 
 
@@ -614,6 +617,44 @@ double Transceiver::rssiOffset(size_t chan)
   return mRadioInterface->rssiOffset(chan) + cfg->rssi_offset;
 }
 
+static SoftVector *demodAnyBurst_va(const signalVector &burst, CorrType type, int sps, int rach_max_toa, int tsc)
+{
+	auto conved_beg = reinterpret_cast<const std::complex<float> *>(&burst.begin()[0]);
+	std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
+	float ncmax;
+	const unsigned burst_len_bits = 148 + 8;
+	char demodded_softbits[burst_len_bits];
+	SoftVector *bits = new SoftVector(burst_len_bits);
+
+	if (type == CorrType::TSC) {
+		auto rach_burst_start = get_norm_chan_imp_resp(conved_beg, chan_imp_resp, &ncmax, tsc);
+		rach_burst_start = std::max(rach_burst_start, 0);
+		detect_burst_nb(conved_beg, chan_imp_resp, rach_burst_start, demodded_softbits);
+	} else {
+		auto normal_burst_start = get_access_imp_resp(conved_beg, chan_imp_resp, &ncmax, 0);
+		normal_burst_start = std::max(normal_burst_start, 0);
+		detect_burst_ab(conved_beg, chan_imp_resp, normal_burst_start, demodded_softbits, rach_max_toa);
+	}
+
+	float *s = &bits->begin()[0];
+	for (unsigned int i = 0; i < 148; i++)
+		s[i] = demodded_softbits[i] * -1;
+	for (unsigned int i = 148; i < burst_len_bits; i++)
+		s[i] = 0;
+	return bits;
+}
+
+#define USE_VA
+
+#ifdef USE_VA
+// signalvector is owning despite claiming not to, but we can pretend, too..
+static void dummy_free(void *wData){};
+static void *dummy_alloc(size_t newSize)
+{
+	return 0;
+};
+#endif
+
 /*
  * Pull bursts from the FIFO and handle according to the slot
  * and burst correlation type. Equalzation is currently disabled.
@@ -634,6 +675,9 @@ int Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi)
   TransceiverState *state = &mStates[chan];
   bool ctr_changed = false;
   double rssi_offset;
+  static complex burst_shift_buffer[625];
+  static signalVector shift_vec(burst_shift_buffer, 0, 625, dummy_alloc, dummy_free);
+  signalVector *shvec_ptr = &shift_vec;
 
   /* Blocking FIFO read */
   radioVector *radio_burst = mReceiveFIFO[chan]->read();
@@ -713,8 +757,15 @@ int Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi)
   max_toa = (type == RACH || type == EXT_RACH) ?
             mMaxExpectedDelayAB : mMaxExpectedDelayNB;
 
+  if (cfg->use_va) {
+    // shifted burst copy to make the old demod and detection happy
+    std::copy(burst->begin() + 20, burst->end() - 20, shift_vec.begin());
+  } else {
+    shvec_ptr = burst;
+  }
+
   /* Detect normal or RACH bursts */
-  rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, cfg->rx_sps, type, max_toa, &ebp);
+  rc = detectAnyBurst(*shvec_ptr, mTSC, BURST_THRESH, cfg->rx_sps, type, max_toa, &ebp);
   if (rc <= 0) {
     if (rc == -SIGERR_CLIP) {
       LOGCHAN(chan, DTRXDUL, INFO) << "Clipping detected on received RACH or Normal Burst";
@@ -728,7 +779,13 @@ int Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi)
     goto ret_idle;
   }
 
-  rxBurst = demodAnyBurst(*burst, (CorrType) rc, cfg->rx_sps, &ebp);
+  if (cfg->use_va) {
+    scaleVector(*burst, { (1. / (float)((1 << 14) - 1)), 0 });
+    rxBurst = demodAnyBurst_va(*burst, (CorrType)rc, cfg->rx_sps, max_toa, mTSC);
+  } else {
+    rxBurst = demodAnyBurst(*shvec_ptr, (CorrType)rc, cfg->rx_sps, &ebp);
+  }
+
   bi->toa = ebp.toa;
   bi->tsc = ebp.tsc;
   bi->ci = ebp.ci;
@@ -902,19 +959,18 @@ int Transceiver::ctrl_sock_handle_rx(int chan)
       sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss);
     }
   } else if (match_cmd(command, "SETMAXDLY", &params)) {
-    //set expected maximum time-of-arrival
+    //set expected maximum time-of-arrival for Access Bursts
     int maxDelay;
     sscanf(params, "%d", &maxDelay);
     mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km
     sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay);
   } else if (match_cmd(command, "SETMAXDLYNB", &params)) {
-    //set expected maximum time-of-arrival
+    //set expected maximum time-of-arrival for Normal Bursts
     int maxDelay;
     sscanf(params, "%d", &maxDelay);
     mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km
     sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay);
   } else if (match_cmd(command, "SETRXGAIN", &params)) {
-    //set expected maximum time-of-arrival
     int newGain;
     sscanf(params, "%d", &newGain);
     newGain = mRadioInterface->setRxGain(newGain, chan);

Transceiver52M/Transceiver.h

@@ -162,9 +162,9 @@ struct ctrl_sock_state {
   }
   ~ctrl_sock_state() {
       if(conn_bfd.fd >= 0) {
+          osmo_fd_unregister(&conn_bfd);
           close(conn_bfd.fd);
           conn_bfd.fd = -1;
-          osmo_fd_unregister(&conn_bfd);
       }
   }
 };

Transceiver52M/device/bladerf/bladerf.cpp

@@ -47,25 +47,11 @@ extern "C" {
 			LOGC(DDEV, ERROR) << bladerf_strerror(status);                                                 \
 	}
 
-/* Device Type, Tx-SPS, Rx-SPS */
-typedef std::tuple<blade_dev_type, int, int> dev_key;
-
-/* Device parameter descriptor */
-struct dev_desc {
-	unsigned channels;
-	double mcr;
-	double rate;
-	double offset;
-	std::string str;
-};
-
-static const std::map<dev_key, dev_desc> dev_param_map{
+static const dev_map_t dev_param_map{
 	{ std::make_tuple(blade_dev_type::BLADE2, 4, 4), { 1, 26e6, GSMRATE, B2XX_TIMING_4_4SPS, "B200 4 SPS" } },
 };
 
-typedef std::tuple<blade_dev_type, enum gsm_band> dev_band_key;
-typedef std::map<dev_band_key, dev_band_desc>::const_iterator dev_band_map_it;
-static const std::map<dev_band_key, dev_band_desc> dev_band_nom_power_param_map{
+static const power_map_t dev_band_nom_power_param_map{
 	{ std::make_tuple(blade_dev_type::BLADE2, GSM_BAND_850), { 89.75, 13.3, -7.5 } },
 	{ std::make_tuple(blade_dev_type::BLADE2, GSM_BAND_900), { 89.75, 13.3, -7.5 } },
 	{ std::make_tuple(blade_dev_type::BLADE2, GSM_BAND_1800), { 89.75, 7.5, -11.0 } },
@@ -84,11 +70,10 @@ static double TxPower2TxGain(const dev_band_desc &desc, double tx_power_dbm)
 	return desc.nom_uhd_tx_gain - (desc.nom_out_tx_power - tx_power_dbm);
 }
 
-blade_device::blade_device(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chan_num, double lo_offset,
-			   const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths)
-	: RadioDevice(tx_sps, rx_sps, iface, chan_num, lo_offset, tx_paths, rx_paths), dev(nullptr), rx_gain_min(0.0),
-	  rx_gain_max(0.0), band_ass_curr_sess(false), band((enum gsm_band)0), tx_spp(0), rx_spp(0), started(false),
-	  aligned(false), drop_cnt(0), prev_ts(0), ts_initial(0), ts_offset(0), async_event_thrd(NULL)
+blade_device::blade_device(InterfaceType iface, const struct trx_cfg *cfg)
+	: RadioDevice(iface, cfg), band_manager(dev_band_nom_power_param_map, dev_param_map), dev(nullptr),
+	  rx_gain_min(0.0), rx_gain_max(0.0), tx_spp(0), rx_spp(0), started(false), aligned(false), drop_cnt(0),
+	  prev_ts(0), ts_initial(0), ts_offset(0), async_event_thrd(NULL)
 {
 }
 
@@ -105,47 +90,6 @@ blade_device::~blade_device()
 		delete rx_buffers[i];
 }
 
-void blade_device::assign_band_desc(enum gsm_band req_band)
-{
-	dev_band_map_it it;
-
-	it = dev_band_nom_power_param_map.find(dev_band_key(dev_type, req_band));
-	if (it == dev_band_nom_power_param_map.end()) {
-		dev_desc desc = dev_param_map.at(dev_key(dev_type, tx_sps, rx_sps));
-		LOGC(DDEV, ERROR) << "No Power parameters exist for device " << desc.str << " on band "
-				  << gsm_band_name(req_band) << ", using B210 ones as fallback";
-		it = dev_band_nom_power_param_map.find(dev_band_key(blade_dev_type::BLADE2, req_band));
-	}
-	OSMO_ASSERT(it != dev_band_nom_power_param_map.end())
-	band_desc = it->second;
-}
-
-bool blade_device::set_band(enum gsm_band req_band)
-{
-	if (band_ass_curr_sess && req_band != band) {
-		LOGC(DDEV, ALERT) << "Requesting band " << gsm_band_name(req_band) << " different from previous band "
-				  << gsm_band_name(band);
-		return false;
-	}
-
-	if (req_band != band) {
-		band = req_band;
-		assign_band_desc(band);
-	}
-	band_ass_curr_sess = true;
-	return true;
-}
-
-void blade_device::get_dev_band_desc(dev_band_desc &desc)
-{
-	if (band == 0) {
-		LOGC(DDEV, ERROR)
-			<< "Power parameters requested before Tx Frequency was set! Providing band 900 by default...";
-		assign_band_desc(GSM_BAND_900);
-	}
-	desc = band_desc;
-}
-
 void blade_device::init_gains()
 {
 	double tx_gain_min, tx_gain_max;
@@ -312,15 +256,15 @@ int blade_device::getNominalTxPower(size_t chan)
 	return desc.nom_out_tx_power;
 }
 
-int blade_device::open(const std::string &args, int ref, bool swap_channels)
+int blade_device::open()
 {
 	bladerf_log_set_verbosity(BLADERF_LOG_LEVEL_VERBOSE);
 	bladerf_set_usb_reset_on_open(true);
-	auto success = bladerf_open(&dev, args.c_str());
+	auto success = bladerf_open(&dev, cfg->dev_args);
 	if (success != 0) {
 		struct bladerf_devinfo *info;
 		auto num_devs = bladerf_get_device_list(&info);
-		LOGC(DDEV, ALERT) << "No bladerf devices found with identifier '" << args << "'";
+		LOGC(DDEV, ALERT) << "No bladerf devices found with identifier '" << cfg->dev_args << "'";
 		if (num_devs) {
 			for (int i = 0; i < num_devs; i++)
 				LOGC(DDEV, ALERT) << "Found device:" << info[i].product << " serial " << info[i].serial;
@@ -335,6 +279,7 @@ int blade_device::open(const std::string &args, int ref, bool swap_channels)
 
 	dev_type = blade_dev_type::BLADE2;
 	tx_window = TX_WINDOW_FIXED;
+	update_band_dev(dev_key(dev_type, tx_sps, rx_sps));
 
 	struct bladerf_devinfo info;
 	bladerf_get_devinfo(dev, &info);
@@ -346,7 +291,7 @@ int blade_device::open(const std::string &args, int ref, bool swap_channels)
 	rx_gains.resize(chans);
 	rx_buffers.resize(chans);
 
-	switch (ref) {
+	switch (cfg->clock_ref) {
 	case REF_INTERNAL:
 	case REF_EXTERNAL:
 		break;
@@ -355,7 +300,7 @@ int blade_device::open(const std::string &args, int ref, bool swap_channels)
 		return -1;
 	}
 
-	if (ref == REF_EXTERNAL) {
+	if (cfg->clock_ref == REF_EXTERNAL) {
 		bool is_locked;
 		int status = bladerf_set_pll_enable(dev, true);
 		CHKRET()
@@ -374,7 +319,8 @@ int blade_device::open(const std::string &args, int ref, bool swap_channels)
 		}
 	}
 
-	LOGC(DDEV, INFO) << "Selected clock source is " << ((ref == REF_INTERNAL) ? "internal" : "external 10Mhz");
+	LOGC(DDEV, INFO)
+		<< "Selected clock source is " << ((cfg->clock_ref == REF_INTERNAL) ? "internal" : "external 10Mhz");
 
 	set_rates();
 
@@ -457,7 +403,7 @@ bool blade_device::stop()
 	for (size_t i = 0; i < rx_buffers.size(); i++)
 		rx_buffers[i]->reset();
 
-	band_ass_curr_sess = false;
+	band_reset();
 
 	started = false;
 	return true;
@@ -580,27 +526,13 @@ bool blade_device::set_freq(double freq, size_t chan, bool tx)
 
 bool blade_device::setTxFreq(double wFreq, size_t chan)
 {
-	uint16_t req_arfcn;
-	enum gsm_band req_band;
-
 	if (chan >= tx_freqs.size()) {
 		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 	ScopedLock lock(tune_lock);
 
-	req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100, 0);
-	if (req_arfcn == 0xffff) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown ARFCN for Tx Frequency " << wFreq / 1000 << " kHz";
-		return false;
-	}
-	if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
-		LOGCHAN(chan, DDEV, ALERT)
-			<< "Unknown GSM band for Tx Frequency " << wFreq << " Hz (ARFCN " << req_arfcn << " )";
-		return false;
-	}
-
-	if (!set_band(req_band))
+	if (!update_band_from_freq(wFreq, chan, true))
 		return false;
 
 	if (!set_freq(wFreq, chan, true))
@@ -611,27 +543,13 @@ bool blade_device::setTxFreq(double wFreq, size_t chan)
 
 bool blade_device::setRxFreq(double wFreq, size_t chan)
 {
-	uint16_t req_arfcn;
-	enum gsm_band req_band;
-
 	if (chan >= rx_freqs.size()) {
 		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 	ScopedLock lock(tune_lock);
 
-	req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100, 1);
-	if (req_arfcn == 0xffff) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown ARFCN for Rx Frequency " << wFreq / 1000 << " kHz";
-		return false;
-	}
-	if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
-		LOGCHAN(chan, DDEV, ALERT)
-			<< "Unknown GSM band for Rx Frequency " << wFreq << " Hz (ARFCN " << req_arfcn << " )";
-		return false;
-	}
-
-	if (!set_band(req_band))
+	if (!update_band_from_freq(wFreq, chan, false))
 		return false;
 
 	return set_freq(wFreq, chan, false);
@@ -687,8 +605,7 @@ double blade_device::fullScaleOutputValue()
 	return (double)2047;
 }
 
-RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chans, double lo_offset,
-			       const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths)
+RadioDevice *RadioDevice::make(InterfaceType type, const struct trx_cfg *cfg)
 {
-	return new blade_device(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
+	return new blade_device(type, cfg);
 }

Transceiver52M/device/bladerf/bladerf.h

@@ -22,10 +22,12 @@
 
 #pragma once
 
+#include <map>
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
+#include "bandmanager.h"
 #include "radioDevice.h"
 #include "smpl_buf.h"
 
@@ -33,8 +35,6 @@ extern "C" {
 #include <osmocom/gsm/gsm_utils.h>
 }
 
-#include <bladerf.h>
-
 enum class blade_dev_type { BLADE1, BLADE2 };
 
 struct dev_band_desc {
@@ -52,13 +52,26 @@ struct dev_band_desc {
 	double rxgain2rssioffset_rel; /* dB */
 };
 
-class blade_device : public RadioDevice {
+/* Device parameter descriptor */
+struct dev_desc {
+	unsigned channels;
+	double mcr;
+	double rate;
+	double offset;
+	std::string desc_str;
+};
+
+using dev_key = std::tuple<blade_dev_type, int, int>;
+using dev_band_key = std::tuple<blade_dev_type, enum gsm_band>;
+using power_map_t = std::map<dev_band_key, dev_band_desc>;
+using dev_map_t = std::map<dev_key, dev_desc>;
+
+class blade_device : public RadioDevice, public band_manager<power_map_t, dev_map_t> {
     public:
-	blade_device(size_t tx_sps, size_t rx_sps, InterfaceType type, size_t chan_num, double offset,
-		     const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths);
+	blade_device(InterfaceType iface, const struct trx_cfg *cfg);
 	~blade_device();
 
-	int open(const std::string &args, int ref, bool swap_channels);
+	int open();
 	bool start();
 	bool stop();
 	bool restart();
@@ -154,9 +167,6 @@ class blade_device : public RadioDevice {
 
 	std::vector<double> tx_gains, rx_gains;
 	std::vector<double> tx_freqs, rx_freqs;
-	bool band_ass_curr_sess; /* true if  "band" was set after last POWEROFF */
-	enum gsm_band band;
-	struct dev_band_desc band_desc;
 	size_t tx_spp, rx_spp;
 
 	bool started;
@@ -179,9 +189,6 @@ class blade_device : public RadioDevice {
 	bool flush_recv(size_t num_pkts);
 
 	bool set_freq(double freq, size_t chan, bool tx);
-	void get_dev_band_desc(dev_band_desc &desc);
-	bool set_band(enum gsm_band req_band);
-	void assign_band_desc(enum gsm_band req_band);
 
 	Thread *async_event_thrd;
 	Mutex tune_lock;

Transceiver52M/device/common/Makefile.am

@@ -4,7 +4,7 @@ AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES)
 AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS)
 
 
-noinst_HEADERS = radioDevice.h smpl_buf.h
+noinst_HEADERS = radioDevice.h smpl_buf.h bandmanager.h
 
 noinst_LTLIBRARIES = libdevice_common.la
 

Transceiver52M/device/common/bandmanager.h

@@ -0,0 +1,137 @@
+#pragma once
+/*
+ * (C) 2022 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Eric Wild <ewild@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <string>
+#include <tuple>
+
+#include "Logger.h"
+
+extern "C" {
+#include <osmocom/gsm/gsm_utils.h>
+}
+
+template <typename powermapt, typename devmapt>
+class band_manager {
+	using powerkeyt = typename powermapt::key_type;
+	using powermappedt = typename powermapt::mapped_type;
+	using devkeyt = typename devmapt::key_type;
+	devkeyt m_dev_type;
+	const powermapt &m_power_map;
+	const devmapt &m_dev_map;
+	powerkeyt m_fallback;
+	enum gsm_band m_band;
+	powermappedt m_band_desc;
+	bool band_ass_curr_sess{}; /* true if  "band" was set after last POWEROFF */
+
+	// looks up either first tuple element (->enum) or straight enum
+	template <typename T, typename std::enable_if<std::is_enum<T>::value>::type *dummy = nullptr>
+	auto key_helper(T &t) -> T
+	{
+		return t;
+	}
+
+	template <typename T>
+	auto key_helper(T t) -> typename std::tuple_element<0, T>::type
+	{
+		return std::get<0>(t);
+	}
+
+	void assign_band_desc(enum gsm_band req_band)
+	{
+		auto key = key_helper(m_dev_type);
+		auto fallback_key = key_helper(m_fallback);
+		auto it = m_power_map.find({ key, req_band });
+		if (it == m_power_map.end()) {
+			auto desc = m_dev_map.at(m_dev_type);
+			LOGC(DDEV, ERROR) << "No Tx Power measurements exist for device " << desc.desc_str
+					  << " on band " << gsm_band_name(req_band) << ", using fallback..";
+			it = m_power_map.find({ fallback_key, req_band });
+		}
+		OSMO_ASSERT(it != m_power_map.end());
+		m_band_desc = it->second;
+	}
+
+	bool set_band(enum gsm_band req_band)
+	{
+		if (band_ass_curr_sess && req_band != m_band) {
+			LOGC(DDEV, ALERT) << "Requesting band " << gsm_band_name(req_band)
+					  << " different from previous band " << gsm_band_name(m_band);
+			return false;
+		}
+
+		if (req_band != m_band) {
+			m_band = req_band;
+			assign_band_desc(m_band);
+		}
+		band_ass_curr_sess = true;
+		return true;
+	}
+
+    public:
+	band_manager(const devkeyt &dev_type, const powermapt &power_map, const devmapt &dev_map, powerkeyt fallback)
+		: m_dev_type(dev_type), m_power_map(power_map), m_dev_map(dev_map), m_fallback(fallback),
+		  m_band((enum gsm_band)0)
+	{
+	}
+	band_manager(const powermapt &power_map, const devmapt &dev_map)
+		: m_dev_type(dev_map.begin()->first), m_power_map(power_map), m_dev_map(dev_map),
+		  m_fallback(m_power_map.begin()->first), m_band((enum gsm_band)0)
+	{
+	}
+	void band_reset()
+	{
+		band_ass_curr_sess = false;
+	}
+
+	void update_band_dev(devkeyt dev_type) {
+		m_dev_type = dev_type;
+	}
+
+	void get_dev_band_desc(powermappedt &desc)
+	{
+		if (m_band == 0) {
+			LOGC(DDEV, ERROR)
+				<< "Power parameters requested before Tx Frequency was set! Providing band 900 by default...";
+			assign_band_desc(GSM_BAND_900);
+		}
+		desc = m_band_desc;
+	}
+
+	bool update_band_from_freq(double wFreq, int chan, bool is_tx)
+	{
+		enum gsm_band req_band;
+		auto dirstr = is_tx ? "Tx" : "Rx";
+		auto req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100, !is_tx);
+		if (req_arfcn == 0xffff) {
+			LOGCHAN(chan, DDEV, ALERT)
+				<< "Unknown ARFCN for " << dirstr << " Frequency " << wFreq / 1000 << " kHz";
+			return false;
+		}
+		if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
+			LOGCHAN(chan, DDEV, ALERT) << "Unknown GSM band for " << dirstr << " Frequency " << wFreq
+						   << " Hz (ARFCN " << req_arfcn << " )";
+			return false;
+		}
+
+		return set_band(req_band);
+	}
+};

Transceiver52M/device/common/radioDevice.h

@@ -51,13 +51,10 @@ class RadioDevice {
     MULTI_ARFCN,
   };
 
-  static RadioDevice *make(size_t tx_sps, size_t rx_sps, InterfaceType type,
-                           size_t chans = 1, double offset = 0.0,
-                           const std::vector<std::string>& tx_paths = std::vector<std::string>(1, ""),
-                           const std::vector<std::string>& rx_paths = std::vector<std::string>(1, ""));
+  static RadioDevice *make(InterfaceType type, const struct trx_cfg *cfg);
 
   /** Initialize the USRP */
-  virtual int open(const std::string &args, int ref, bool swap_channels)=0;
+  virtual int open() = 0;
 
   virtual ~RadioDevice() { }
 
@@ -164,23 +161,30 @@ class RadioDevice {
   double lo_offset;
   std::vector<std::string> tx_paths, rx_paths;
   std::vector<struct device_counters> m_ctr;
+  const struct trx_cfg *cfg;
 
-  RadioDevice(size_t tx_sps, size_t rx_sps, InterfaceType type, size_t chan_num, double offset,
-              const std::vector<std::string>& tx_paths,
-              const std::vector<std::string>& rx_paths):
-		tx_sps(tx_sps), rx_sps(rx_sps), iface(type), chans(chan_num), lo_offset(offset),
-		tx_paths(tx_paths), rx_paths(rx_paths), m_ctr(chans)
-	{
-		if (iface == MULTI_ARFCN) {
-			LOGC(DDEV, INFO) << "Multi-ARFCN: "<< chan_num << " logical chans -> 1 physical chans";
-			chans = 1;
-		}
+#define charp2str(a) ((a) ? std::string(a) : std::string(""))
 
-		for (size_t i = 0; i < chans; i++) {
-			memset(&m_ctr[i], 0, sizeof(m_ctr[i]));
-			m_ctr[i].chan = i;
-		}
-	}
+  RadioDevice(InterfaceType type, const struct trx_cfg *cfg)
+	  : tx_sps(cfg->tx_sps), rx_sps(cfg->rx_sps), iface(type), chans(cfg->num_chans), lo_offset(cfg->offset),
+	    m_ctr(chans), cfg(cfg)
+  {
+	  /* Generate vector of rx/tx_path: */
+	  for (unsigned int i = 0; i < cfg->num_chans; i++) {
+		  rx_paths.push_back(charp2str(cfg->chans[i].rx_path));
+		  tx_paths.push_back(charp2str(cfg->chans[i].tx_path));
+	  }
+
+	  if (iface == MULTI_ARFCN) {
+		  LOGC(DDEV, INFO) << "Multi-ARFCN: " << chans << " logical chans -> 1 physical chans";
+		  chans = 1;
+	  }
+
+	  for (size_t i = 0; i < chans; i++) {
+		  memset(&m_ctr[i], 0, sizeof(m_ctr[i]));
+		  m_ctr[i].chan = i;
+	  }
+  }
 
   bool set_antennas() {
 	unsigned int i;

Transceiver52M/device/ipc/IPCDevice.cpp

@@ -56,11 +56,10 @@ using namespace std;
 
 static int ipc_chan_sock_cb(struct osmo_fd *bfd, unsigned int flags);
 
-IPCDevice::IPCDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chan_num, double lo_offset,
-		     const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths)
-	: RadioDevice(tx_sps, rx_sps, iface, chan_num, lo_offset, tx_paths, rx_paths), sk_chan_state(chans, ipc_per_trx_sock_state()),
-	  tx_attenuation(), tmp_state(IPC_IF_MSG_GREETING_REQ), shm(NULL), shm_dec(0),
-	  rx_buffers(chans), started(false), tx_gains(chans), rx_gains(chans)
+IPCDevice::IPCDevice(InterfaceType iface, const struct trx_cfg *cfg)
+	: RadioDevice(iface, cfg), sk_chan_state(chans, ipc_per_trx_sock_state()), tx_attenuation(),
+	  tmp_state(IPC_IF_MSG_GREETING_REQ), shm(NULL), shm_dec(0), rx_buffers(chans), started(false), tx_gains(chans),
+	  rx_gains(chans)
 {
 	LOGC(DDEV, INFO) << "creating IPC device...";
 
@@ -537,9 +536,9 @@ void IPCDevice::ipc_sock_close(struct ipc_per_trx_sock_state *state)
 
 	LOGP(DDEV, LOGL_NOTICE, "IPC socket has LOST connection\n");
 
+	osmo_fd_unregister(bfd);
 	close(bfd->fd);
 	bfd->fd = -1;
-	osmo_fd_unregister(bfd);
 
 	/* flush the queue */
 	while (!llist_empty(&state->upqueue)) {
@@ -771,11 +770,12 @@ static int ipc_chan_sock_cb(struct osmo_fd *bfd, unsigned int flags)
 	return rc;
 }
 
-int IPCDevice::open(const std::string &args, int ref, bool swap_channels)
+int IPCDevice::open()
 {
 	std::string k, v;
 	std::string::size_type keyend;
 	int rc;
+	std::string args(cfg->dev_args);
 
 	if ((keyend = args.find('=')) != std::string::npos) {
 		k = args.substr(0, keyend++);
@@ -810,7 +810,7 @@ int IPCDevice::open(const std::string &args, int ref, bool swap_channels)
 	while (tmp_state != IPC_IF_MSG_INFO_CNF)
 		osmo_select_main(0);
 
-	ipc_tx_open_req(&master_sk_state, chans, ref);
+	ipc_tx_open_req(&master_sk_state, chans, cfg->clock_ref);
 	/* Wait until confirmation is recieved */
 	while (tmp_state != IPC_IF_MSG_OPEN_CNF)
 		osmo_select_main(0);
@@ -1259,16 +1259,15 @@ bool IPCDevice::setRxFreq(double wFreq, size_t chan)
 	return send_chan_wait_rsp(chan, msg, IPC_IF_MSG_SETFREQ_CNF);
 }
 
-RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chans, double lo_offset,
-			       const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths)
+RadioDevice *RadioDevice::make(InterfaceType type, const struct trx_cfg *cfg)
 {
-	if (tx_sps != rx_sps) {
+	if (cfg->tx_sps != cfg->rx_sps) {
 		LOGC(DDEV, ERROR) << "IPC Requires tx_sps == rx_sps";
 		return NULL;
 	}
-	if (lo_offset != 0.0) {
+	if (cfg->offset != 0.0) {
 		LOGC(DDEV, ERROR) << "IPC doesn't support lo_offset";
 		return NULL;
 	}
-	return new IPCDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
+	return new IPCDevice(type, cfg);
 }

Transceiver52M/device/ipc/IPCDevice.h

@@ -115,12 +115,11 @@ class IPCDevice : public RadioDevice {
 	int ipc_chan_sock_write(osmo_fd *bfd);
 
 	/** Object constructor */
-	IPCDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chan_num, double lo_offset,
-		  const std::vector<std::string> &tx_paths, const std::vector<std::string> &rx_paths);
+	IPCDevice(InterfaceType iface, const struct trx_cfg *cfg);
 	virtual ~IPCDevice() override;
 
 	/** Instantiate the IPC */
-	virtual int open(const std::string &args, int ref, bool swap_channels) override;
+	virtual int open() override;
 
 	/** Start the IPC */
 	virtual bool start() override;

Transceiver52M/device/ipc/Makefile.am

@@ -1,9 +1,8 @@
 include $(top_srcdir)/Makefile.common
 
-AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
-AM_CFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS)
-AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS)
-AM_LDFLAGS = -lpthread -lrt
+AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) $(UHD_CFLAGS)
+AM_CXXFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) $(UHD_CFLAGS)
 
 noinst_HEADERS = IPCDevice.h shm.h ipc_shm.h ipc_chan.h ipc_sock.h
 
@@ -14,22 +13,22 @@ endif
 noinst_LTLIBRARIES = libdevice.la
 
 libdevice_la_SOURCES = IPCDevice.cpp shm.c ipc_shm.c ipc_chan.c ipc_sock.c
-libdevice_la_LIBADD = $(top_builddir)/Transceiver52M/device/common/libdevice_common.la
-libdevice_la_CXXFLAGS = $(AM_CXXFLAGS) -DIPCMAGIC
+libdevice_la_CPPFLAGS = $(AM_CPPFLAGS) -DIPCMAGIC
+libdevice_la_LIBADD = \
+	$(top_builddir)/Transceiver52M/device/common/libdevice_common.la \
+	-lpthread \
+	-lrt \
+	$(NULL)
 
 if DEVICE_UHD
 
 bin_PROGRAMS = ipc-driver-test
 #ipc_driver_test_SHORTNAME = drvt
-ipc_driver_test_SOURCES = ipc-driver-test.c uhdwrap.cpp ipc_shm.c ipc_chan.c ipc_sock.c ../uhd/UHDDevice.cpp
+ipc_driver_test_SOURCES = ipc-driver-test.c uhdwrap.cpp ../uhd/UHDDevice.cpp
 ipc_driver_test_LDADD = \
-        shm.lo \
-	$(top_builddir)/Transceiver52M/device/common/libdevice_common.la \
-	$(COMMON_LA)
+	libdevice.la \
+	$(COMMON_LA) \
 	$(LIBOSMOCORE_LIBS) \
+	$(UHD_LIBS) \
 	$(NULL)
-ipc_driver_test_CXXFLAGS = $(AM_CXXFLAGS) $(UHD_CFLAGS)
-ipc_driver_test_CPPFLAGS  = $(AM_CPPFLAGS) $(UHD_CFLAGS)
-ipc_driver_test_CFLAGS  = $(AM_CFLAGS) $(UHD_CFLAGS)
-ipc_driver_test_LDFLAGS  = $(AM_LDFLAGS) $(UHD_LIBS)
 endif

Transceiver52M/device/ipc/ipc_sock.c

@@ -97,9 +97,9 @@ void ipc_sock_close(struct ipc_sock_state *state)
 
 	ipc_exit_requested = 1;
 
+	osmo_fd_unregister(bfd);
 	close(bfd->fd);
 	bfd->fd = -1;
-	osmo_fd_unregister(bfd);
 
 	/* re-enable the generation of ACCEPT for new connections */
 	osmo_fd_read_enable(&state->listen_bfd);

Transceiver52M/device/ipc/uhdwrap.cpp

@@ -35,9 +35,12 @@ extern "C" {
 #include "Threads.h"
 #include "Utils.h"
 
-int uhd_wrap::open(const std::string &args, int ref, bool swap_channels)
+// no vty source for cfg params here, so we have to build our own
+static struct trx_cfg actual_cfg = {};
+
+int uhd_wrap::open()
 {
-	int rv = uhd_device::open(args, ref, swap_channels);
+	int rv = uhd_device::open();
 	samps_per_buff_rx = rx_stream->get_max_num_samps();
 	samps_per_buff_tx = tx_stream->get_max_num_samps();
 	channel_count = usrp_dev->get_rx_num_channels();
@@ -84,36 +87,33 @@ int uhd_wrap::wrap_read(TIMESTAMP *timestamp)
 
 extern "C" void *uhdwrap_open(struct ipc_sk_if_open_req *open_req)
 {
-	unsigned int rx_sps, tx_sps;
+	actual_cfg.num_chans = open_req->num_chans;
+	actual_cfg.swap_channels = false;
+	/* FIXME: this is actually the sps value, not the sample rate!
+	 * sample rate is looked up according to the sps rate by uhd backend */
+	actual_cfg.rx_sps = open_req->rx_sample_freq_num / open_req->rx_sample_freq_den;
+	actual_cfg.tx_sps = open_req->tx_sample_freq_num / open_req->tx_sample_freq_den;
 
 	/* FIXME: dev arg string* */
 	/* FIXME: rx frontend bw? */
 	/* FIXME: tx frontend bw? */
-	ReferenceType cref;
 	switch (open_req->clockref) {
 	case FEATURE_MASK_CLOCKREF_EXTERNAL:
-		cref = ReferenceType::REF_EXTERNAL;
+		actual_cfg.clock_ref = ReferenceType::REF_EXTERNAL;
 		break;
 	case FEATURE_MASK_CLOCKREF_INTERNAL:
 	default:
-		cref = ReferenceType::REF_INTERNAL;
+		actual_cfg.clock_ref = ReferenceType::REF_INTERNAL;
 		break;
 	}
 
-	std::vector<std::string> tx_paths;
-	std::vector<std::string> rx_paths;
 	for (unsigned int i = 0; i < open_req->num_chans; i++) {
-		tx_paths.push_back(open_req->chan_info[i].tx_path);
-		rx_paths.push_back(open_req->chan_info[i].rx_path);
+		actual_cfg.chans[i].rx_path = open_req->chan_info[i].tx_path;
+		actual_cfg.chans[i].tx_path = open_req->chan_info[i].rx_path;
 	}
 
-	/* FIXME: this is actually the sps value, not the sample rate!
-	 * sample rate is looked up according to the sps rate by uhd backend */
-	rx_sps = open_req->rx_sample_freq_num / open_req->rx_sample_freq_den;
-	tx_sps = open_req->tx_sample_freq_num / open_req->tx_sample_freq_den;
-	uhd_wrap *uhd_wrap_dev =
-		new uhd_wrap(tx_sps, rx_sps, RadioDevice::NORMAL, open_req->num_chans, 0.0, tx_paths, rx_paths);
-	uhd_wrap_dev->open("", cref, false);
+	uhd_wrap *uhd_wrap_dev = new uhd_wrap(RadioDevice::NORMAL, &actual_cfg);
+	uhd_wrap_dev->open();
 
 	return uhd_wrap_dev;
 }

Transceiver52M/device/ipc/uhdwrap.h

@@ -41,7 +41,7 @@ class uhd_wrap : public uhd_device {
 
 	//    void ipc_sock_close() override {};
 	int wrap_read(TIMESTAMP *timestamp);
-	virtual int open(const std::string &args, int ref, bool swap_channels) override;
+	virtual int open() override;
 
 	//	bool start() override;
 	//	bool stop() override;

Transceiver52M/device/lms/LMSDevice.cpp

@@ -52,39 +52,16 @@ extern "C" {
 #define LMS_DEV_SDR_MINI_PREFIX_NAME "LimeSDR-Mini"
 #define LMS_DEV_NET_MICRO_PREFIX_NAME "LimeNET-Micro"
 
-/* Device parameter descriptor */
-struct dev_desc {
-	/* Does LimeSuite allow switching the clock source for this device?
-	 * LimeSDR-Mini does not have switches but needs soldering to select
-	 * external/internal clock. Any call to LMS_SetClockFreq() will fail.
-	 */
-	bool clock_src_switchable;
-	/* Does LimeSuite allow using REF_INTERNAL for this device?
-	 * LimeNET-Micro does not like selecting internal clock
-	 */
-	bool clock_src_int_usable;
-	/* Sample rate coef (without having TX/RX samples per symbol into account) */
-	double rate;
-	/* Sample rate coef (without having TX/RX samples per symbol into account), if multi-arfcn is enabled */
-	double rate_multiarfcn;
-	/* Coefficient multiplied by TX sample rate in order to shift Tx time */
-	double ts_offset_coef;
-	/* Coefficient multiplied by TX sample rate in order to shift Tx time, if multi-arfcn is enabled */
-	double ts_offset_coef_multiarfcn;
-	/* Device Name Prefix as presented by LimeSuite API LMS_GetDeviceInfo() */
-	std::string name_prefix;
-};
 
-static const std::map<enum lms_dev_type, struct dev_desc> dev_param_map {
+
+static const dev_map_t dev_param_map {
 	{ LMS_DEV_SDR_USB,   { true,  true,  GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, LMS_DEV_SDR_USB_PREFIX_NAME } },
 	{ LMS_DEV_SDR_MINI,  { false, true,  GSMRATE, MCBTS_SPACING, 8.9e-5, 8.2e-5, LMS_DEV_SDR_MINI_PREFIX_NAME } },
 	{ LMS_DEV_NET_MICRO, { true,  false, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, LMS_DEV_NET_MICRO_PREFIX_NAME } },
 	{ LMS_DEV_UNKNOWN,   { true,  true,  GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, "UNKNOWN" } },
 };
 
-typedef std::tuple<lms_dev_type, enum gsm_band> dev_band_key;
-typedef std::map<dev_band_key, dev_band_desc>::const_iterator dev_band_map_it;
-static const std::map<dev_band_key, dev_band_desc> dev_band_nom_power_param_map {
+static const power_map_t dev_band_nom_power_param_map {
 	{ std::make_tuple(LMS_DEV_SDR_USB, GSM_BAND_850),	{ 73.0, 11.2,  -6.0  } },
 	{ std::make_tuple(LMS_DEV_SDR_USB, GSM_BAND_900),	{ 73.0, 10.8,  -6.0  } },
 	{ std::make_tuple(LMS_DEV_SDR_USB, GSM_BAND_1800),	{ 65.0, -3.5,  -17.0 } }, /* FIXME: OS#4583: 1800Mhz is failing above TxGain=65, which is around -3.5dBm (already < 0 dBm) */
@@ -122,8 +99,8 @@ static enum lms_dev_type parse_dev_type(lms_device_t *m_lms_dev)
 		enum lms_dev_type dev_type = it->first;
 		struct dev_desc desc = it->second;
 
-		if (strncmp(device_info->deviceName, desc.name_prefix.c_str(), desc.name_prefix.length()) == 0) {
-			LOGC(DDEV, INFO) << "Device identified as " << desc.name_prefix;
+		if (strncmp(device_info->deviceName, desc.desc_str.c_str(), desc.desc_str.length()) == 0) {
+			LOGC(DDEV, INFO) << "Device identified as " << desc.desc_str;
 			return dev_type;
 		}
 		it++;
@@ -131,12 +108,10 @@ static enum lms_dev_type parse_dev_type(lms_device_t *m_lms_dev)
 	return LMS_DEV_UNKNOWN;
 }
 
-LMSDevice::LMSDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chan_num, double lo_offset,
-		     const std::vector<std::string>& tx_paths,
-		     const std::vector<std::string>& rx_paths):
-		     RadioDevice(tx_sps, rx_sps, iface, chan_num, lo_offset, tx_paths, rx_paths),
-		     m_lms_dev(NULL), started(false), band_ass_curr_sess(false), band((enum gsm_band)0),
-		     m_dev_type(LMS_DEV_UNKNOWN)
+LMSDevice::LMSDevice(InterfaceType iface, const struct trx_cfg *cfg)
+	: RadioDevice(iface, cfg),
+	  band_manager(m_dev_type, dev_band_nom_power_param_map, dev_param_map, {LMS_DEV_SDR_USB, GSM_BAND_850}), m_lms_dev(NULL),
+	  started(false), m_dev_type(LMS_DEV_UNKNOWN)
 {
 	LOGC(DDEV, INFO) << "creating LMS device...";
 
@@ -175,7 +150,7 @@ static void lms_log_callback(int lvl, const char *msg)
 {
 	/* map lime specific log levels */
 	static const int lvl_map[5] = {
-		[0] = LOGL_FATAL,
+		[LMS_LOG_CRITICAL] = LOGL_FATAL,
 		[LMS_LOG_ERROR] = LOGL_ERROR,
 		[LMS_LOG_WARNING] = LOGL_NOTICE,
 		[LMS_LOG_INFO] = LOGL_INFO,
@@ -223,48 +198,7 @@ int info_list_find(lms_info_str_t* info_list, unsigned int count, const std::str
 	return -1;
 }
 
-void LMSDevice::assign_band_desc(enum gsm_band req_band)
-{
-	dev_band_map_it it;
-
-	it = dev_band_nom_power_param_map.find(dev_band_key(m_dev_type, req_band));
-	if (it == dev_band_nom_power_param_map.end()) {
-		dev_desc desc = dev_param_map.at(m_dev_type);
-		LOGC(DDEV, ERROR) << "No Tx Power measurements exist for device "
-				    << desc.name_prefix << " on band " << gsm_band_name(req_band)
-				    << ", using LimeSDR-USB ones as fallback";
-		it = dev_band_nom_power_param_map.find(dev_band_key(LMS_DEV_SDR_USB, req_band));
-	}
-	OSMO_ASSERT(it != dev_band_nom_power_param_map.end());
-	band_desc = it->second;
-}
-
-bool LMSDevice::set_band(enum gsm_band req_band)
-{
-	if (band_ass_curr_sess && req_band != band) {
-		LOGC(DDEV, ALERT) << "Requesting band " << gsm_band_name(req_band)
-				  << " different from previous band " << gsm_band_name(band);
-		return false;
-	}
-
-	if (req_band != band) {
-		band = req_band;
-		assign_band_desc(band);
-	}
-	band_ass_curr_sess = true;
-	return true;
-}
-
-void LMSDevice::get_dev_band_desc(dev_band_desc& desc)
-{
-	if (band == 0) {
-		LOGC(DDEV, ERROR) << "Power parameters requested before Tx Frequency was set! Providing band 900 by default...";
-		assign_band_desc(GSM_BAND_900);
-	}
-	desc = band_desc;
-}
-
-int LMSDevice::open(const std::string &args, int ref, bool swap_channels)
+int LMSDevice::open()
 {
 	lms_info_str_t* info_list;
 	lms_range_t range_sr;
@@ -292,9 +226,9 @@ int LMSDevice::open(const std::string &args, int ref, bool swap_channels)
 	for (i = 0; i < n; i++)
 		LOGC(DDEV, INFO) << "Device [" << i << "]: " << info_list[i];
 
-	dev_id = info_list_find(info_list, n, args);
+	dev_id = info_list_find(info_list, n, cfg->dev_args);
 	if (dev_id == -1) {
-		LOGC(DDEV, ERROR) << "No LMS device found with address '" << args << "'";
+		LOGC(DDEV, ERROR) << "No LMS device found with address '" << cfg->dev_args << "'";
 		delete[] info_list;
 		return -1;
 	}
@@ -311,14 +245,15 @@ int LMSDevice::open(const std::string &args, int ref, bool swap_channels)
 
 	m_dev_type = parse_dev_type(m_lms_dev);
 	dev_desc = dev_param_map.at(m_dev_type);
+	update_band_dev(m_dev_type);
 
-	if ((ref != REF_EXTERNAL) && (ref != REF_INTERNAL)){
+	if ((cfg->clock_ref != REF_EXTERNAL) && (cfg->clock_ref != REF_INTERNAL)) {
 		LOGC(DDEV, ERROR) << "Invalid reference type";
 		goto out_close;
 	}
 
 	/* if reference clock is external, setup must happen _before_ calling LMS_Init */
-	if (ref == REF_EXTERNAL) {
+	if (cfg->clock_ref == REF_EXTERNAL) {
 		LOGC(DDEV, INFO) << "Setting External clock reference to 10MHz";
 		/* FIXME: Assume an external 10 MHz reference clock. make
 		   external reference frequency configurable */
@@ -333,7 +268,7 @@ int LMSDevice::open(const std::string &args, int ref, bool swap_channels)
 	}
 
 	/* if reference clock is internal, setup must happen _after_ calling LMS_Init */
-	if (ref == REF_INTERNAL) {
+	if (cfg->clock_ref == REF_INTERNAL) {
 		LOGC(DDEV, INFO) << "Setting Internal clock reference";
 		/* Internal freq param is not used */
 		if (!do_clock_src_freq(REF_INTERNAL, 0))
@@ -469,7 +404,7 @@ bool LMSDevice::stop()
 		LMS_DestroyStream(m_lms_dev, &m_lms_stream_rx[i]);
 	}
 
-	band_ass_curr_sess = false;
+	band_reset();
 
 	started = false;
 	return true;
@@ -486,8 +421,8 @@ bool LMSDevice::do_clock_src_freq(enum ReferenceType ref, double freq)
 		break;
 	case REF_INTERNAL:
 		if (!dev_desc.clock_src_int_usable) {
-			LOGC(DDEV, ERROR) << "Device type " << dev_desc.name_prefix
-					  << " doesn't support internal reference clock";
+			LOGC(DDEV, ERROR)
+				<< "Device type " << dev_desc.desc_str << " doesn't support internal reference clock";
 			return false;
 		}
 		/* According to lms using LMS_CLOCK_EXTREF with a
@@ -505,8 +440,8 @@ bool LMSDevice::do_clock_src_freq(enum ReferenceType ref, double freq)
 		if (LMS_SetClockFreq(m_lms_dev, lms_clk_id, freq) < 0)
 			return false;
 	} else {
-		LOGC(DDEV, INFO) << "Device type " << dev_desc.name_prefix
-				 << " doesn't support switching clock source through SW";
+		LOGC(DDEV, INFO)
+			<< "Device type " << dev_desc.desc_str << " doesn't support switching clock source through SW";
 	}
 
 	return true;
@@ -999,9 +934,6 @@ bool LMSDevice::updateAlignment(TIMESTAMP timestamp)
 
 bool LMSDevice::setTxFreq(double wFreq, size_t chan)
 {
-	uint16_t req_arfcn;
-	enum gsm_band req_band;
-
 	if (chan >= chans) {
 		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
@@ -1009,18 +941,7 @@ bool LMSDevice::setTxFreq(double wFreq, size_t chan)
 
 	LOGCHAN(chan, DDEV, NOTICE) << "Setting Tx Freq to " << wFreq << " Hz";
 
-	req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100 , 0);
-	if (req_arfcn == 0xffff) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown ARFCN for Tx Frequency " << wFreq / 1000 << " kHz";
-		return false;
-	}
-	if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown GSM band for Tx Frequency " << wFreq
-					   << " Hz (ARFCN " << req_arfcn << " )";
-		return false;
-	}
-
-	if (!set_band(req_band))
+	if (!update_band_from_freq(wFreq, chan, true))
 		return false;
 
 	if (LMS_SetLOFrequency(m_lms_dev, LMS_CH_TX, chan, wFreq) < 0) {
@@ -1033,23 +954,9 @@ bool LMSDevice::setTxFreq(double wFreq, size_t chan)
 
 bool LMSDevice::setRxFreq(double wFreq, size_t chan)
 {
-	uint16_t req_arfcn;
-	enum gsm_band req_band;
-
 	LOGCHAN(chan, DDEV, NOTICE) << "Setting Rx Freq to " << wFreq << " Hz";
 
-	req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100, 1);
-	if (req_arfcn == 0xffff) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown ARFCN for Rx Frequency " << wFreq / 1000 << " kHz";
-		return false;
-	}
-	if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown GSM band for Rx Frequency " << wFreq
-					   << " Hz (ARFCN " << req_arfcn << " )";
-		return false;
-	}
-
-	if (!set_band(req_band))
+	if (!update_band_from_freq(wFreq, chan, false))
 		return false;
 
 	if (LMS_SetLOFrequency(m_lms_dev, LMS_CH_RX, chan, wFreq) < 0) {
@@ -1060,18 +967,15 @@ bool LMSDevice::setRxFreq(double wFreq, size_t chan)
 	return true;
 }
 
-RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
-			       InterfaceType iface, size_t chans, double lo_offset,
-			       const std::vector < std::string > &tx_paths,
-			       const std::vector < std::string > &rx_paths)
+RadioDevice *RadioDevice::make(InterfaceType type, const struct trx_cfg *cfg)
 {
-	if (tx_sps != rx_sps) {
-		LOGC(DDEV, ERROR) << "LMS Requires tx_sps == rx_sps";
+	if (cfg->tx_sps != cfg->rx_sps) {
+		LOGC(DDEV, ERROR) << "LMS requires tx_sps == rx_sps";
 		return NULL;
 	}
-	if (lo_offset != 0.0) {
+	if (cfg->offset != 0.0) {
 		LOGC(DDEV, ERROR) << "LMS doesn't support lo_offset";
 		return NULL;
 	}
-	return new LMSDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
+	return new LMSDevice(type, cfg);
 }

Transceiver52M/device/lms/LMSDevice.h

@@ -18,11 +18,13 @@
 #ifndef _LMS_DEVICE_H_
 #define _LMS_DEVICE_H_
 
+#include <map>
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include "radioDevice.h"
+#include "bandmanager.h"
 #include "smpl_buf.h"
 
 #include <sys/time.h>
@@ -69,8 +71,35 @@ struct dev_band_desc {
 	double rxgain2rssioffset_rel; /* dB */
 };
 
+/* Device parameter descriptor */
+struct dev_desc {
+	/* Does LimeSuite allow switching the clock source for this device?
+	 * LimeSDR-Mini does not have switches but needs soldering to select
+	 * external/internal clock. Any call to LMS_SetClockFreq() will fail.
+	 */
+	bool clock_src_switchable;
+	/* Does LimeSuite allow using REF_INTERNAL for this device?
+	 * LimeNET-Micro does not like selecting internal clock
+	 */
+	bool clock_src_int_usable;
+	/* Sample rate coef (without having TX/RX samples per symbol into account) */
+	double rate;
+	/* Sample rate coef (without having TX/RX samples per symbol into account), if multi-arfcn is enabled */
+	double rate_multiarfcn;
+	/* Coefficient multiplied by TX sample rate in order to shift Tx time */
+	double ts_offset_coef;
+	/* Coefficient multiplied by TX sample rate in order to shift Tx time, if multi-arfcn is enabled */
+	double ts_offset_coef_multiarfcn;
+	/* Device Name Prefix as presented by LimeSuite API LMS_GetDeviceInfo() */
+	std::string desc_str;
+};
+
+using dev_band_key_t = std::tuple<lms_dev_type, gsm_band>;
+using power_map_t = std::map<dev_band_key_t, dev_band_desc>;
+using dev_map_t = std::map<lms_dev_type, struct dev_desc>;
+
 /** A class to handle a LimeSuite supported device */
-class LMSDevice:public RadioDevice {
+class LMSDevice:public RadioDevice, public band_manager<power_map_t, dev_map_t> {
 
 private:
 	lms_device_t *m_lms_dev;
@@ -87,9 +116,6 @@ private:
 	TIMESTAMP ts_initial, ts_offset;
 
 	std::vector<double> tx_gains, rx_gains;
-	bool band_ass_curr_sess; /* true if  "band" was set after last POWEROFF */
-	enum gsm_band band;
-	struct dev_band_desc band_desc;
 
 	enum lms_dev_type m_dev_type;
 
@@ -101,29 +127,25 @@ private:
 	void update_stream_stats_rx(size_t chan, bool *overrun);
 	void update_stream_stats_tx(size_t chan, bool *underrun);
 	bool do_clock_src_freq(enum ReferenceType ref, double freq);
-	void get_dev_band_desc(dev_band_desc& desc);
-	bool set_band(enum gsm_band req_band);
-	void assign_band_desc(enum gsm_band req_band);
 public:
 
 	/** Object constructor */
-	LMSDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chan_num, double lo_offset,
-		  const std::vector<std::string>& tx_paths,
-		  const std::vector<std::string>& rx_paths);
-	~LMSDevice();
+    LMSDevice(InterfaceType iface, const struct trx_cfg *cfg);
+    ~LMSDevice();
 
-	/** Instantiate the LMS */
-	int open(const std::string &args, int ref, bool swap_channels);
+    /** Instantiate the LMS */
+    int open();
 
-	/** Start the LMS */
-	bool start();
+    /** Start the LMS */
+    bool start();
 
-	/** Stop the LMS */
-	bool stop();
+    /** Stop the LMS */
+    bool stop();
 
-	enum TxWindowType getWindowType() {
-		return TX_WINDOW_LMS1;
-	}
+    enum TxWindowType getWindowType()
+    {
+	    return TX_WINDOW_LMS1;
+    }
 
 	/**
 	Read samples from the LMS.

Transceiver52M/device/uhd/UHDDevice.cpp

@@ -91,19 +91,7 @@ extern "C" {
  *   USRP1 with timestamps is not supported by UHD.
  */
 
-/* Device Type, Tx-SPS, Rx-SPS */
-typedef std::tuple<uhd_dev_type, int, int> dev_key;
-
-/* Device parameter descriptor */
-struct dev_desc {
-	unsigned channels;
-	double mcr;
-	double rate;
-	double offset;
-	std::string str;
-};
-
-static const std::map<dev_key, dev_desc> dev_param_map {
+static const dev_map_t dev_param_map {
 	{ std::make_tuple(USRP2, 1, 1), { 1, 0.0,  390625,  1.2184e-4,  "N2XX 1 SPS"         } },
 	{ std::make_tuple(USRP2, 4, 1), { 1, 0.0,  390625,  7.6547e-5,  "N2XX 4/1 Tx/Rx SPS" } },
 	{ std::make_tuple(USRP2, 4, 4), { 1, 0.0,  390625,  4.6080e-5,  "N2XX 4 SPS"         } },
@@ -129,9 +117,7 @@ static const std::map<dev_key, dev_desc> dev_param_map {
 	{ std::make_tuple(B2XX_MCBTS, 4, 4), { 1, 51.2e6, MCBTS_SPACING*4, B2XX_TIMING_MCBTS, "B200/B210 4 SPS Multi-ARFCN" } },
 };
 
-typedef std::tuple<uhd_dev_type, enum gsm_band> dev_band_key;
-typedef std::map<dev_band_key, dev_band_desc>::const_iterator dev_band_map_it;
-static const std::map<dev_band_key, dev_band_desc> dev_band_nom_power_param_map {
+static const power_map_t dev_band_nom_power_param_map {
 	{ std::make_tuple(B200, GSM_BAND_850),	{ 89.75, 13.3, -7.5  } },
 	{ std::make_tuple(B200, GSM_BAND_900),	{ 89.75, 13.3, -7.5  } },
 	{ std::make_tuple(B200, GSM_BAND_1800),	{ 89.75, 7.5,  -11.0 } },
@@ -220,15 +206,10 @@ static double TxPower2TxGain(const dev_band_desc &desc, double tx_power_dbm)
 	return desc.nom_uhd_tx_gain - (desc.nom_out_tx_power - tx_power_dbm);
 }
 
-uhd_device::uhd_device(size_t tx_sps, size_t rx_sps,
-		       InterfaceType iface, size_t chan_num, double lo_offset,
-		       const std::vector<std::string>& tx_paths,
-		       const std::vector<std::string>& rx_paths)
-	: RadioDevice(tx_sps, rx_sps, iface, chan_num, lo_offset, tx_paths, rx_paths),
-	  rx_gain_min(0.0), rx_gain_max(0.0), band_ass_curr_sess(false),
-	  band((enum gsm_band)0), tx_spp(0), rx_spp(0),
-	  started(false), aligned(false), drop_cnt(0),
-	  prev_ts(0,0), ts_initial(0), ts_offset(0), async_event_thrd(NULL)
+uhd_device::uhd_device(InterfaceType iface, const struct trx_cfg *cfg)
+	: RadioDevice(iface, cfg), band_manager(dev_band_nom_power_param_map, dev_param_map), rx_gain_min(0.0),
+	  rx_gain_max(0.0), tx_spp(0), rx_spp(0), started(false), aligned(false), drop_cnt(0), prev_ts(0, 0),
+	  ts_initial(0), ts_offset(0), async_event_thrd(NULL)
 {
 }
 
@@ -240,47 +221,6 @@ uhd_device::~uhd_device()
 		delete rx_buffers[i];
 }
 
-void uhd_device::assign_band_desc(enum gsm_band req_band)
-{
-	dev_band_map_it it;
-
-	it = dev_band_nom_power_param_map.find(dev_band_key(dev_type, req_band));
-	if (it == dev_band_nom_power_param_map.end()) {
-		dev_desc desc = dev_param_map.at(dev_key(dev_type, tx_sps, rx_sps));
-		LOGC(DDEV, ERROR) << "No Power parameters exist for device "
-				    << desc.str << " on band " << gsm_band_name(req_band)
-				    << ", using B210 ones as fallback";
-		it = dev_band_nom_power_param_map.find(dev_band_key(B210, req_band));
-	}
-	OSMO_ASSERT(it != dev_band_nom_power_param_map.end())
-	band_desc = it->second;
-}
-
-bool uhd_device::set_band(enum gsm_band req_band)
-{
-	if (band_ass_curr_sess && req_band != band) {
-		LOGC(DDEV, ALERT) << "Requesting band " << gsm_band_name(req_band)
-				  << " different from previous band " << gsm_band_name(band);
-		return false;
-	}
-
-	if (req_band != band) {
-		band = req_band;
-		assign_band_desc(band);
-	}
-	band_ass_curr_sess = true;
-	return true;
-}
-
-void uhd_device::get_dev_band_desc(dev_band_desc& desc)
-{
-	if (band == 0) {
-		LOGC(DDEV, ERROR) << "Power parameters requested before Tx Frequency was set! Providing band 900 by default...";
-		assign_band_desc(GSM_BAND_900);
-	}
-	desc = band_desc;
-}
-
 void uhd_device::init_gains()
 {
 	double tx_gain_min, tx_gain_max;
@@ -345,7 +285,7 @@ void uhd_device::set_rates()
 	rx_rate = usrp_dev->get_rx_rate();
 
 	ts_offset = static_cast<TIMESTAMP>(desc.offset * rx_rate);
-	LOGC(DDEV, INFO) << "Rates configured for " << desc.str;
+	LOGC(DDEV, INFO) << "Rates configured for " << desc.desc_str;
 }
 
 double uhd_device::setRxGain(double db, size_t chan)
@@ -355,6 +295,9 @@ double uhd_device::setRxGain(double db, size_t chan)
 		return 0.0f;
 	}
 
+	if (cfg->overrides.ul_gain_override)
+		return rx_gains[chan];
+
 	usrp_dev->set_rx_gain(db, chan);
 	rx_gains[chan] = usrp_dev->get_rx_gain(chan);
 
@@ -397,6 +340,9 @@ double uhd_device::setPowerAttenuation(int atten, size_t chan) {
 		return 0.0f;
 	}
 
+	if (cfg->overrides.dl_gain_override)
+		return atten; // ensures caller does not apply digital attenuation
+
 	get_dev_band_desc(desc);
 	tx_power = desc.nom_out_tx_power - atten;
 	db = TxPower2TxGain(desc, tx_power);
@@ -548,7 +494,7 @@ void uhd_device::set_channels(bool swap)
 	}
 }
 
-int uhd_device::open(const std::string &args, int ref, bool swap_channels)
+int uhd_device::open()
 {
 	const char *refstr;
 	int clock_lock_attempts = 15;
@@ -564,10 +510,10 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 #endif
 
 	// Find UHD devices
-	uhd::device_addr_t addr(args);
+	uhd::device_addr_t addr(cfg->dev_args);
 	uhd::device_addrs_t dev_addrs = uhd::device::find(addr);
 	if (dev_addrs.size() == 0) {
-		LOGC(DDEV, ALERT) << "No UHD devices found with address '" << args << "'";
+		LOGC(DDEV, ALERT) << "No UHD devices found with address '" << cfg->dev_args << "'";
 		return -1;
 	}
 
@@ -576,7 +522,7 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	try {
 		usrp_dev = uhd::usrp::multi_usrp::make(addr);
 	} catch(uhd::key_error::exception &e) {
-		LOGC(DDEV, ALERT) << "UHD make failed, device " << args << ", exception:\n" << e.what();
+		LOGC(DDEV, ALERT) << "UHD make failed, device " << cfg->dev_args << ", exception:\n" << e.what();
 		return -1;
 	}
 
@@ -584,14 +530,16 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	if (!parse_dev_type())
 		return -1;
 
+	update_band_dev(dev_key(dev_type, tx_sps, rx_sps));
+
 	if ((dev_type == E3XX) && !uhd_e3xx_version_chk()) {
 		LOGC(DDEV, ALERT) << "E3XX requires UHD 003.009.000 or greater";
 		return -1;
 	}
 
 	try {
-		set_channels(swap_channels);
-        } catch (const std::exception &e) {
+		set_channels(cfg->swap_channels);
+	} catch (const std::exception &e) {
 		LOGC(DDEV, ALERT) << "Channel setting failed - " << e.what();
 		return -1;
 	}
@@ -607,7 +555,7 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	rx_gains.resize(chans);
 	rx_buffers.resize(chans);
 
-	switch (ref) {
+	switch (cfg->clock_ref) {
 	case REF_INTERNAL:
 		refstr = "internal";
 		break;
@@ -686,6 +634,32 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	// Print configuration
 	LOGC(DDEV, INFO) << "Device configuration: " << usrp_dev->get_pp_string();
 
+	if (cfg->overrides.dl_freq_override) {
+		uhd::tune_request_t treq_tx = uhd::tune_request_t(cfg->overrides.dl_freq, 0);
+		auto tres = usrp_dev->set_tx_freq(treq_tx, 0);
+		tx_freqs[0] = usrp_dev->get_tx_freq(0);
+		LOGCHAN(0, DDEV, INFO) << "OVERRIDE set_freq(" << tx_freqs[0] << ", TX): " << tres.to_pp_string() << std::endl;
+	}
+
+	if (cfg->overrides.ul_freq_override) {
+		uhd::tune_request_t treq_rx = uhd::tune_request_t(cfg->overrides.ul_freq, 0);
+		auto tres = usrp_dev->set_rx_freq(treq_rx, 0);
+		rx_freqs[0] = usrp_dev->get_rx_freq(0);
+		LOGCHAN(0, DDEV, INFO) << "OVERRIDE set_freq(" << rx_freqs[0] << ", RX): " << tres.to_pp_string() << std::endl;
+	}
+
+	if (cfg->overrides.ul_gain_override) {
+		usrp_dev->set_rx_gain(cfg->overrides.ul_gain, 0);
+		rx_gains[0] = usrp_dev->get_rx_gain(0);
+		LOGCHAN(0, DDEV, INFO) << " OVERRIDE RX gain:" << rx_gains[0] << std::endl;
+	}
+
+	if (cfg->overrides.dl_gain_override) {
+		usrp_dev->set_tx_gain(cfg->overrides.dl_gain, 0);
+		tx_gains[0] = usrp_dev->get_tx_gain(0);
+		LOGCHAN(0, DDEV, INFO) << " OVERRIDE TX gain:" << tx_gains[0] << std::endl;
+	}
+
 	if (iface == MULTI_ARFCN)
 		return MULTI_ARFCN;
 
@@ -796,7 +770,7 @@ bool uhd_device::stop()
 	for (size_t i = 0; i < rx_buffers.size(); i++)
 		rx_buffers[i]->reset();
 
-	band_ass_curr_sess = false;
+	band_reset();
 
 	started = false;
 	return true;
@@ -1036,17 +1010,22 @@ bool uhd_device::set_freq(double freq, size_t chan, bool tx)
 {
 	std::vector<double> freqs;
 	uhd::tune_result_t tres;
+	std::string str_dir = tx ? "Tx" : "Rx";
+
+	if (cfg->overrides.dl_freq_override || cfg->overrides.ul_freq_override)
+		return true;
+
+	if (!update_band_from_freq(freq, chan, tx))
+		return false;
+
 	uhd::tune_request_t treq = select_freq(freq, chan, tx);
-	std::string str_dir;
 
 	if (tx) {
 		tres = usrp_dev->set_tx_freq(treq, chan);
 		tx_freqs[chan] = usrp_dev->get_tx_freq(chan);
-		str_dir = "Tx";
 	} else {
 		tres = usrp_dev->set_rx_freq(treq, chan);
 		rx_freqs[chan] = usrp_dev->get_rx_freq(chan);
-		str_dir = "Rx";
 	}
 	LOGCHAN(chan, DDEV, INFO) << "set_freq(" << freq << ", " << str_dir << "): " << tres.to_pp_string() << std::endl;
 
@@ -1076,59 +1055,20 @@ bool uhd_device::set_freq(double freq, size_t chan, bool tx)
 
 bool uhd_device::setTxFreq(double wFreq, size_t chan)
 {
-	uint16_t req_arfcn;
-	enum gsm_band req_band;
-
 	if (chan >= tx_freqs.size()) {
 		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
-	ScopedLock lock(tune_lock);
 
-	req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100 , 0);
-	if (req_arfcn == 0xffff) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown ARFCN for Tx Frequency " << wFreq / 1000 << " kHz";
-		return false;
-	}
-	if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown GSM band for Tx Frequency " << wFreq
-					   << " Hz (ARFCN " << req_arfcn << " )";
-		return false;
-	}
-
-	if (!set_band(req_band))
-		return false;
-
-	if (!set_freq(wFreq, chan, true))
-		return false;
-
-	return true;
+	return set_freq(wFreq, chan, true);
 }
 
 bool uhd_device::setRxFreq(double wFreq, size_t chan)
 {
-	uint16_t req_arfcn;
-	enum gsm_band req_band;
-
 	if (chan >= rx_freqs.size()) {
 		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
-	ScopedLock lock(tune_lock);
-
-	req_arfcn = gsm_freq102arfcn(wFreq / 1000 / 100, 1);
-	if (req_arfcn == 0xffff) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown ARFCN for Rx Frequency " << wFreq / 1000 << " kHz";
-		return false;
-	}
-	if (gsm_arfcn2band_rc(req_arfcn, &req_band) < 0) {
-		LOGCHAN(chan, DDEV, ALERT) << "Unknown GSM band for Rx Frequency " << wFreq
-					   << " Hz (ARFCN " << req_arfcn << " )";
-		return false;
-	}
-
-	if (!set_band(req_band))
-		return false;
 
 	return set_freq(wFreq, chan, false);
 }
@@ -1378,11 +1318,8 @@ std::string uhd_device::str_code(uhd::async_metadata_t metadata)
 }
 
 #ifndef IPCMAGIC
-RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
-			       InterfaceType iface, size_t chans, double lo_offset,
-			       const std::vector<std::string>& tx_paths,
-			       const std::vector<std::string>& rx_paths)
+RadioDevice *RadioDevice::make(InterfaceType type, const struct trx_cfg *cfg)
 {
-	return new uhd_device(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
+	return new uhd_device(type, cfg);
 }
 #endif

Transceiver52M/device/uhd/UHDDevice.h

@@ -30,6 +30,7 @@
 #include "config.h"
 #endif
 
+#include "bandmanager.h"
 #include "radioDevice.h"
 #include "smpl_buf.h"
 
@@ -71,6 +72,19 @@ struct dev_band_desc {
 	double rxgain2rssioffset_rel; /* dB */
 };
 
+struct dev_desc {
+	unsigned channels;
+	double mcr;
+	double rate;
+	double offset;
+	std::string desc_str;
+};
+
+using dev_key = std::tuple<uhd_dev_type, int, int>;
+using dev_band_key = std::tuple<uhd_dev_type, enum gsm_band>;
+using power_map_t = std::map<dev_band_key, dev_band_desc>;
+using dev_map_t = std::map<dev_key, dev_desc>;
+
 /*
     uhd_device - UHD implementation of the Device interface. Timestamped samples
                 are sent to and received from the device. An intermediate buffer
@@ -78,19 +92,19 @@ struct dev_band_desc {
                 Events and errors such as underruns are reported asynchronously
                 by the device and received in a separate thread.
 */
-class uhd_device : public RadioDevice {
+class uhd_device : public RadioDevice, public band_manager<power_map_t, dev_map_t> {
 public:
-	uhd_device(size_t tx_sps, size_t rx_sps, InterfaceType type,
-		   size_t chan_num, double offset,
-		   const std::vector<std::string>& tx_paths,
-		   const std::vector<std::string>& rx_paths);
-	~uhd_device();
+    uhd_device(InterfaceType iface, const struct trx_cfg *cfg);
+    ~uhd_device();
 
-	int open(const std::string &args, int ref, bool swap_channels);
-	bool start();
-	bool stop();
-	bool restart();
-	enum TxWindowType getWindowType() { return tx_window; }
+    int open();
+    bool start();
+    bool stop();
+    bool restart();
+    enum TxWindowType getWindowType()
+    {
+	    return tx_window;
+    }
 
 	int readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 			TIMESTAMP timestamp, bool *underrun);
@@ -160,9 +174,6 @@ protected:
 
 	std::vector<double> tx_gains, rx_gains;
 	std::vector<double> tx_freqs, rx_freqs;
-	bool band_ass_curr_sess; /* true if  "band" was set after last POWEROFF */
-	enum gsm_band band;
-	struct dev_band_desc band_desc;
 	size_t tx_spp, rx_spp;
 
 	bool started;
@@ -191,10 +202,6 @@ protected:
 
 	uhd::tune_request_t select_freq(double wFreq, size_t chan, bool tx);
 	bool set_freq(double freq, size_t chan, bool tx);
-	void get_dev_band_desc(dev_band_desc& desc);
-	bool set_band(enum gsm_band req_band);
-	void assign_band_desc(enum gsm_band req_band);
 
 	Thread *async_event_thrd;
-	Mutex tune_lock;
 };

Transceiver52M/device/usrp1/USRPDevice.cpp

@@ -60,11 +60,7 @@ const dboardConfigType dboardConfig = TXA_RXB;
 
 const double USRPDevice::masterClockRate = 52.0e6;
 
-USRPDevice::USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface,
-		       size_t chan_num, double lo_offset,
-		       const std::vector<std::string>& tx_paths,
-		       const std::vector<std::string>& rx_paths):
-		RadioDevice(tx_sps, rx_sps, iface, chan_num, lo_offset, tx_paths, rx_paths)
+USRPDevice::USRPDevice(InterfaceType iface, const struct trx_cfg *cfg) : RadioDevice(iface, cfg)
 {
   LOGC(DDEV, INFO) << "creating USRP device...";
 
@@ -79,22 +75,23 @@ USRPDevice::USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface,
    * split sample rate Tx/Rx - 4/1 sps we need to need to
    * compensate for advance rather than delay.
    */
-  if (tx_sps == 1)
-    pingOffset = 272;
-  else if (tx_sps == 4)
-    pingOffset = 269 - 7500;
-  else
-    pingOffset = 0;
+  pingOffset = 272;
+
+  /* Split SPS (4/1) unsupported on USRP1
+   * if(tx_sps == 4 && rx_sps == 1)
+   *   pingOffset = 269 - 7500;
+   */
 
 #ifdef SWLOOPBACK
   samplePeriod = 1.0e6/actualSampleRate;
   loopbackBufferSize = 0;
   gettimeofday(&lastReadTime,NULL);
   firstRead = false;
+  pingOffset = 0;
 #endif
 }
 
-int USRPDevice::open(const std::string &, int, bool)
+int USRPDevice::open()
 {
   writeLock.unlock();
 
@@ -105,7 +102,7 @@ int USRPDevice::open(const std::string &, int, bool)
   m_uRx.reset();
   try {
     m_uRx = usrp_standard_rx_sptr(usrp_standard_rx::make(
-                                        0, decimRate * tx_sps, 1, -1,
+                                        0, decimRate, 1, -1,
                                         usrp_standard_rx::FPGA_MODE_NORMAL,
                                         1024, 16 * 8, rbf));
     m_uRx->set_fpga_master_clock_freq(masterClockRate);
@@ -587,8 +584,7 @@ bool USRPDevice::updateAlignment(TIMESTAMP timestamp)
 {
 #ifndef SWLOOPBACK
   short data[] = {0x00,0x02,0x00,0x00};
-  uint32_t *wordPtr = (uint32_t *) data;
-  *wordPtr = host_to_usrp_u32(*wordPtr);
+  /* FIXME: big endian */
   bool tmpUnderrun;
 
   std::vector<short *> buf(1, data);
@@ -659,22 +655,19 @@ bool USRPDevice::setTxFreq(double wFreq) { return true;};
 bool USRPDevice::setRxFreq(double wFreq) { return true;};
 #endif
 
-RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
-			       InterfaceType iface, size_t chans, double lo_offset,
-			       const std::vector<std::string>& tx_paths,
-			       const std::vector<std::string>& rx_paths)
+RadioDevice *RadioDevice::make(InterfaceType type, const struct trx_cfg *cfg)
 {
-	if (tx_sps != rx_sps) {
-		LOGC(DDEV, ERROR) << "USRP1 requires tx_sps == rx_sps";
-		return NULL;
-	}
-	if (chans != 1) {
-		LOGC(DDEV, ERROR) << "USRP1 supports only 1 channel";
-		return NULL;
-	}
-	if (lo_offset != 0.0) {
-		LOGC(DDEV, ERROR) << "USRP1 doesn't support lo_offset";
-		return NULL;
-	}
-	return new USRPDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
+  if (cfg->tx_sps != cfg->rx_sps) {
+    LOGC(DDEV, ERROR) << "USRP1 requires tx_sps == rx_sps";
+    return NULL;
+  }
+  if (cfg->num_chans != 1) {
+    LOGC(DDEV, ERROR) << "USRP1 supports only 1 channel";
+    return NULL;
+  }
+  if (cfg->offset != 0.0) {
+    LOGC(DDEV, ERROR) << "USRP1 doesn't support lo_offset";
+    return NULL;
+  }
+  return new USRPDevice(type, cfg);
 }

Transceiver52M/device/usrp1/USRPDevice.h

@@ -104,20 +104,21 @@ private:
  public:
 
   /** Object constructor */
-  USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chan_num, double lo_offset,
-		const std::vector<std::string>& tx_paths,
-		const std::vector<std::string>& rx_paths);
+     USRPDevice(InterfaceType iface, const struct trx_cfg *cfg);
 
-  /** Instantiate the USRP */
-  int open(const std::string &, int, bool);
+     /** Instantiate the USRP */
+     int open();
 
-  /** Start the USRP */
-  bool start();
+     /** Start the USRP */
+     bool start();
 
-  /** Stop the USRP */
-  bool stop();
+     /** Stop the USRP */
+     bool stop();
 
-  enum TxWindowType getWindowType() { return TX_WINDOW_USRP1; }
+     enum TxWindowType getWindowType()
+     {
+	     return TX_WINDOW_USRP1;
+     }
 
   /**
 	Read samples from the USRP.

Transceiver52M/grgsm_vitac/constants.h

@@ -38,6 +38,7 @@
 #define STEALING_BIT      1
 #define N_TRAIN_BITS      26
 #define N_SYNC_BITS       64
+#define N_ACCESS_BITS     41
 #define USEFUL_BITS       142  //(2*(DATA_BITS+STEALING_BIT) + N_TRAIN_BITS )
 #define FCCH_BITS         USEFUL_BITS
 #define BURST_SIZE        (USEFUL_BITS+2*TAIL_BITS)
@@ -73,6 +74,12 @@ static const unsigned char SYNC_BITS[] = {
   0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1
 };
 
+static const unsigned char ACCESS_BITS [] = {
+ 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1,
+ 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0,
+ 0, 1, 1, 1, 1, 0, 0, 0
+};
+
 const unsigned FCCH_FRAMES[] = { 0, 10, 20, 30, 40 };
 const unsigned SCH_FRAMES[] = { 1, 11, 21, 31, 41 };
 

Transceiver52M/grgsm_vitac/grgsm_vitac.cpp

@@ -39,13 +39,13 @@
 #include "viterbi_detector.h"
 #include "grgsm_vitac.h"
 
-//signalVector mChanResp;
+gr_complex d_acc_training_seq[N_ACCESS_BITS]; ///<encoded training sequence of a RACH burst
 gr_complex d_sch_training_seq[N_SYNC_BITS]; ///<encoded training sequence of a SCH burst
 gr_complex d_norm_training_seq[TRAIN_SEQ_NUM][N_TRAIN_BITS]; ///<encoded training sequences of a normal and dummy burst
 const int d_chan_imp_length = CHAN_IMP_RESP_LENGTH;
 
-void initvita() {
-
+void initvita()
+{
 	/**
 	 * Prepare SCH sequence bits
 	 *
@@ -53,59 +53,72 @@ void initvita() {
 	 * Burst and two guard periods
 	 * (one guard period is an arbitrary overlap)
 	 */
-	gmsk_mapper(SYNC_BITS, N_SYNC_BITS,
-		d_sch_training_seq, gr_complex(0.0, -1.0));
+	gmsk_mapper(SYNC_BITS, N_SYNC_BITS, d_sch_training_seq, gr_complex(0.0, -1.0));
 	for (auto &i : d_sch_training_seq)
 		i = conj(i);
 
+	/* ab */
+	gmsk_mapper(ACCESS_BITS, N_ACCESS_BITS, d_acc_training_seq, gr_complex(0.0, -1.0));
+	for (auto &i : d_acc_training_seq)
+		i = conj(i);
+
 	/* Prepare bits of training sequences */
 	for (int i = 0; i < TRAIN_SEQ_NUM; i++) {
 		/**
 		 * If first bit of the sequence is 0
 		 * => first symbol is 1, else -1
 		 */
-		gr_complex startpoint = train_seq[i][0] == 0 ?
-			gr_complex(1.0, 0.0) : gr_complex(-1.0, 0.0);
-		gmsk_mapper(train_seq[i], N_TRAIN_BITS,
-			d_norm_training_seq[i], startpoint);
+		gr_complex startpoint = train_seq[i][0] == 0 ? gr_complex(1.0, 0.0) : gr_complex(-1.0, 0.0);
+		gmsk_mapper(train_seq[i], N_TRAIN_BITS, d_norm_training_seq[i], startpoint);
 		for (auto &i : d_norm_training_seq[i])
 			i = conj(i);
 	}
-
 }
 
-MULTI_VER_TARGET_ATTR NO_UBSAN
-void detect_burst(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary)
+template <unsigned int burst_size>
+NO_UBSAN static void detect_burst_generic(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start,
+					  char *output_binary, int ss)
 {
 	std::vector<gr_complex> rhh_temp(CHAN_IMP_RESP_LENGTH * d_OSR);
 	unsigned int stop_states[2] = { 4, 12 };
-	gr_complex filtered_burst[BURST_SIZE];
+	gr_complex filtered_burst[burst_size];
 	gr_complex rhh[CHAN_IMP_RESP_LENGTH];
-	float output[BURST_SIZE];
-	int start_state = 3;
-
-	// if(burst_start < 0 ||burst_start > 10)
-	// 	fprintf(stderr, "bo %d\n", burst_start);
-
-	// burst_start = burst_start >= 0 ? burst_start : 0;
+	float output[burst_size];
+	int start_state = ss;
 
 	autocorrelation(chan_imp_resp, &rhh_temp[0], d_chan_imp_length * d_OSR);
 	for (int ii = 0; ii < d_chan_imp_length; ii++)
 		rhh[ii] = conj(rhh_temp[ii * d_OSR]);
 
-	mafi(&input[burst_start], BURST_SIZE, chan_imp_resp,
-		d_chan_imp_length * d_OSR, filtered_burst);
+	mafi(&input[burst_start], burst_size, chan_imp_resp, d_chan_imp_length * d_OSR, filtered_burst);
 
-	viterbi_detector(filtered_burst, BURST_SIZE, rhh,
-		start_state, stop_states, 2, output);
+	viterbi_detector(filtered_burst, burst_size, rhh, start_state, stop_states, 2, output);
 
-	for (int i = 0; i < BURST_SIZE; i++)
-		output_binary[i] = output[i] * -127; // pre flip bits!
+	for (unsigned int i = 0; i < burst_size; i++)
+		output_binary[i] = output[i] > 0 ? -127 : 127; // pre flip bits!
 }
 
-void
-gmsk_mapper(const unsigned char* input,
-	int nitems, gr_complex* gmsk_output, gr_complex start_point)
+NO_UBSAN void detect_burst_nb(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary,
+			      int ss)
+{
+	return detect_burst_generic<BURST_SIZE>(input, chan_imp_resp, burst_start, output_binary, ss);
+}
+NO_UBSAN void detect_burst_ab(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary,
+			      int ss)
+{
+	return detect_burst_generic<8 + 41 + 36 + 3>(input, chan_imp_resp, burst_start, output_binary, ss);
+}
+
+NO_UBSAN void detect_burst_nb(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary)
+{
+	return detect_burst_nb(input, chan_imp_resp, burst_start, output_binary, 3);
+}
+NO_UBSAN void detect_burst_ab(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary)
+{
+	return detect_burst_ab(input, chan_imp_resp, burst_start, output_binary, 3);
+}
+
+void gmsk_mapper(const unsigned char *input, int nitems, gr_complex *gmsk_output, gr_complex start_point)
 {
 	gr_complex j = gr_complex(0.0, 1.0);
 	gmsk_output[0] = start_point;
@@ -122,16 +135,13 @@ gmsk_mapper(const unsigned char* input,
 		encoded_symbol = current_symbol * previous_symbol;
 
 		/* And do GMSK mapping */
-		gmsk_output[i] = j * gr_complex(encoded_symbol, 0.0)
-			* gmsk_output[i - 1];
+		gmsk_output[i] = j * gr_complex(encoded_symbol, 0.0) * gmsk_output[i - 1];
 
 		previous_symbol = current_symbol;
 	}
 }
 
-gr_complex
-correlate_sequence(const gr_complex* sequence,
-	int length, const gr_complex* input)
+gr_complex correlate_sequence(const gr_complex *sequence, int length, const gr_complex *input)
 {
 	gr_complex result(0.0, 0.0);
 
@@ -142,9 +152,7 @@ correlate_sequence(const gr_complex* sequence,
 }
 
 /* Computes autocorrelation for positive arguments */
-inline void
-autocorrelation(const gr_complex* input,
-	gr_complex* out, int nitems)
+inline void autocorrelation(const gr_complex *input, gr_complex *out, int nitems)
 {
 	for (int k = nitems - 1; k >= 0; k--) {
 		out[k] = gr_complex(0, 0);
@@ -153,9 +161,7 @@ autocorrelation(const gr_complex* input,
 	}
 }
 
-inline void
-mafi(const gr_complex* input, int nitems,
-	gr_complex* filter, int filter_length, gr_complex* output)
+inline void mafi(const gr_complex *input, int nitems, gr_complex *filter, int filter_length, gr_complex *output)
 {
 	for (int n = 0; n < nitems; n++) {
 		int a = n * d_OSR;
@@ -170,66 +176,45 @@ mafi(const gr_complex* input, int nitems,
 	}
 }
 
-int get_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, int search_center, int search_start_pos,
-		      int search_stop_pos, gr_complex *tseq, int tseqlen, float *corr_max)
+int get_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, int search_start_pos, int search_stop_pos,
+		      gr_complex *tseq, int tseqlen, float *corr_max)
 {
-	std::vector<gr_complex> correlation_buffer;
+	const int num_search_windows = search_stop_pos - search_start_pos;
+	const int power_search_window_len = d_chan_imp_length * d_OSR;
 	std::vector<float> window_energy_buffer;
 	std::vector<float> power_buffer;
+	std::vector<gr_complex> correlation_buffer;
 
-	for (int ii = search_start_pos; ii < search_stop_pos; ii++) {
-		gr_complex correlation = correlate_sequence(tseq, tseqlen, &input[ii]);
+	power_buffer.reserve(num_search_windows);
+	correlation_buffer.reserve(num_search_windows);
+	window_energy_buffer.reserve(num_search_windows);
+
+	for (int ii = 0; ii < num_search_windows; ii++) {
+		gr_complex correlation = correlate_sequence(tseq, tseqlen, &input[search_start_pos + ii]);
 		correlation_buffer.push_back(correlation);
 		power_buffer.push_back(std::pow(abs(correlation), 2));
 	}
 
-	int strongest_corr_nr = max_element(power_buffer.begin(), power_buffer.end()) - power_buffer.begin();
-
 	/* Compute window energies */
-	auto window_energy_start_offset = strongest_corr_nr - 6 * d_OSR;
-	window_energy_start_offset = window_energy_start_offset < 0 ? 0 : window_energy_start_offset; //can end up out of range..
-	auto window_energy_end_offset = strongest_corr_nr + 6 * d_OSR + d_chan_imp_length * d_OSR;
-	auto iter = power_buffer.begin() + window_energy_start_offset;
-	auto iter_end = power_buffer.begin() + window_energy_end_offset;
-	while (iter != iter_end) {
-		std::vector<float>::iterator iter_ii = iter;
-		bool loop_end = false;
-		float energy = 0;
+	float windowSum = 0;
 
-		int len = d_chan_imp_length * d_OSR;
-		for (int ii = 0; ii < len; ii++, iter_ii++) {
-			if (iter_ii == power_buffer.end()) {
-				loop_end = true;
-				break;
-			}
+	// first window
+	for (int i = 0; i < power_search_window_len; i++) {
+		windowSum += power_buffer[i];
+	}
+	window_energy_buffer.push_back(windowSum);
 
-			energy += (*iter_ii);
-		}
-
-		if (loop_end)
-			break;
-
-		window_energy_buffer.push_back(energy);
-		iter++;
+	// slide windows
+	for (int i = power_search_window_len; i < num_search_windows; i++) {
+		windowSum += power_buffer[i] - power_buffer[i - power_search_window_len];
+		window_energy_buffer.push_back(windowSum);
 	}
 
-	/* Calculate the strongest window number */
-	int strongest_window_nr = window_energy_start_offset +
-				  max_element(window_energy_buffer.begin(), window_energy_buffer.end()) -
+	int strongest_window_nr = std::max_element(window_energy_buffer.begin(), window_energy_buffer.end()) -
 				  window_energy_buffer.begin();
 
-	// auto window_search_start = window_energy_buffer.begin() + strongest_corr_nr - 5* d_OSR;
-	// auto window_search_end = window_energy_buffer.begin() + strongest_corr_nr + 10* d_OSR;
-	// window_search_end = window_search_end >= window_energy_buffer.end() ? window_energy_buffer.end() : window_search_end;
-
-	// /* Calculate the strongest window number */
-	// int strongest_window_nr = max_element(window_search_start, window_search_end /* - d_chan_imp_length * d_OSR*/) - window_energy_buffer.begin();
-
-	// if (strongest_window_nr < 0)
-	// 	strongest_window_nr = 0;
-
 	float max_correlation = 0;
-	for (int ii = 0; ii < d_chan_imp_length * d_OSR; ii++) {
+	for (int ii = 0; ii < power_search_window_len; ii++) {
 		gr_complex correlation = correlation_buffer[strongest_window_nr + ii];
 		if (abs(correlation) > max_correlation)
 			max_correlation = abs(correlation);
@@ -242,7 +227,27 @@ int get_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, int se
 	 * Compute first sample position, which corresponds
 	 * to the first sample of the impulse response
 	 */
-	return search_start_pos + strongest_window_nr - search_center * d_OSR;
+	return search_start_pos + strongest_window_nr;
+}
+
+/*
+8 ext tail bits
+41 sync seq
+36 encrypted bits
+3 tail bits
+68.25 extended tail bits (!)
+
+center at 8+5 (actually known tb -> known isi, start at 8?) FIXME
+*/
+int get_access_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, float *corr_max, int max_delay)
+{
+	const int search_center = 8 + 5;
+	const int search_start_pos = (search_center - 5) * d_OSR + 1;
+	const int search_stop_pos = (search_center + 5 + d_chan_imp_length + max_delay) * d_OSR;
+	const auto tseq = &d_acc_training_seq[TRAIN_BEGINNING];
+	const auto tseqlen = N_ACCESS_BITS - (2 * TRAIN_BEGINNING);
+	return get_chan_imp_resp(input, chan_imp_resp, search_start_pos, search_stop_pos, tseq, tseqlen, corr_max) -
+	       search_center * d_OSR;
 }
 
 /*
@@ -260,8 +265,8 @@ int get_norm_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, f
 	const int search_stop_pos = (search_center + 5 + d_chan_imp_length) * d_OSR;
 	const auto tseq = &d_norm_training_seq[bcc][TRAIN_BEGINNING];
 	const auto tseqlen = N_TRAIN_BITS - (2 * TRAIN_BEGINNING);
-	return get_chan_imp_resp(input, chan_imp_resp, search_center, search_start_pos, search_stop_pos, tseq, tseqlen,
-				 corr_max);
+	return get_chan_imp_resp(input, chan_imp_resp, search_start_pos, search_stop_pos, tseq, tseqlen, corr_max) -
+	       search_center * d_OSR;
 }
 
 /*
@@ -281,8 +286,9 @@ int get_sch_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp)
 
 	// strongest_window_nr + chan_imp_resp_center + SYNC_POS *d_OSR - 48 * d_OSR - 2 * d_OSR + 2 ;
 	float corr_max;
-	return get_chan_imp_resp(input, chan_imp_resp, search_center, search_start_pos, search_stop_pos, tseq, tseqlen,
-				 &corr_max);
+	return get_chan_imp_resp(input, chan_imp_resp, search_start_pos, search_stop_pos, tseq, tseqlen, &corr_max) -
+	       search_center * d_OSR;
+	;
 }
 
 int get_sch_buffer_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, unsigned int len, float *corr_max)
@@ -291,9 +297,9 @@ int get_sch_buffer_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_r
 	const int search_center = SYNC_POS + TRAIN_BEGINNING;
 	const int search_start_pos = 0;
 	// FIXME: proper end offset
-	const int search_stop_pos = len - (N_SYNC_BITS*8);
+	const int search_stop_pos = len - (N_SYNC_BITS * 8);
 	auto tseq = &d_sch_training_seq[TRAIN_BEGINNING];
 
-	return get_chan_imp_resp(input, chan_imp_resp, search_center, search_start_pos, search_stop_pos, tseq, tseqlen,
-				 corr_max);
+	return get_chan_imp_resp(input, chan_imp_resp, search_start_pos, search_stop_pos, tseq, tseqlen, corr_max) -
+	       search_center * d_OSR;
 }

Transceiver52M/grgsm_vitac/grgsm_vitac.h

@@ -42,6 +42,10 @@
 #define MULTI_VER_TARGET_ATTR_CLANGONLY
 #endif
 
+/* ancient gcc < 8 has no attribute, clang always pretends to be gcc 4 */
+#if !defined(__clang__) && __GNUC__ < 8
+#define NO_UBSAN __attribute__((no_sanitize_undefined))
+#else
 #if defined(__has_attribute)
 #if __has_attribute(no_sanitize)
 #define NO_UBSAN __attribute__((no_sanitize("undefined")))
@@ -49,6 +53,7 @@
 #else
 #define NO_UBSAN
 #endif
+#endif
 
 #define SYNC_SEARCH_RANGE 30
 const int d_OSR(4);
@@ -58,8 +63,11 @@ void initvita();
 int process_vita_burst(gr_complex *input, int tsc, unsigned char *output_binary);
 int process_vita_sc_burst(gr_complex *input, int tsc, unsigned char *output_binary, int *offset);
 
-MULTI_VER_TARGET_ATTR_CLANGONLY
-void detect_burst(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary);
+void detect_burst_nb(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary, int ss);
+void detect_burst_ab(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary, int ss);
+void detect_burst_nb(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary);
+void detect_burst_ab(const gr_complex *input, gr_complex *chan_imp_resp, int burst_start, char *output_binary);
+
 void gmsk_mapper(const unsigned char *input, int nitems, gr_complex *gmsk_output, gr_complex start_point);
 gr_complex correlate_sequence(const gr_complex *sequence, int length, const gr_complex *input);
 inline void autocorrelation(const gr_complex *input, gr_complex *out, int nitems);
@@ -67,6 +75,7 @@ inline void mafi(const gr_complex *input, int nitems, gr_complex *filter, int fi
 int get_sch_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp);
 int get_norm_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, float *corr_max, int bcc);
 int get_sch_buffer_chan_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, unsigned int len, float *corr_max);
+int get_access_imp_resp(const gr_complex *input, gr_complex *chan_imp_resp, float *corr_max, int max_delay);
 
 enum class btype { NB, SCH };
 struct fdata {

Transceiver52M/ms/bladerf_specific.h

@@ -39,14 +39,16 @@ const size_t NUM_TRANSFERS = 16 * 2;
 const int SAMPLE_SCALE_FACTOR = 15; // actually 16 but sigproc complains about clipping..
 
 // see https://en.cppreference.com/w/cpp/language/parameter_pack  "Brace-enclosed initializers" example
-template <typename Arg, typename... Args> void expand_args(std::ostream &out, Arg &&arg, Args &&...args)
+template <typename Arg, typename... Args>
+void expand_args(std::ostream &out, Arg &&arg, Args &&...args)
 {
 	out << '(' << std::forward<Arg>(arg);
 	(void)(int[]){ 0, (void((out << "," << std::forward<Args>(args))), 0)... };
 	out << ')' << std::endl;
 }
 
-template <class R, class... Args> using RvalFunc = R (*)(Args...);
+template <class R, class... Args>
+using RvalFunc = R (*)(Args...);
 
 template <class R, class... Args>
 R exec_and_check(RvalFunc<R, Args...> func, const char *fname, const char *finame, const char *funcname, int line,
@@ -67,7 +69,8 @@ R exec_and_check(RvalFunc<R, Args...> func, const char *fname, const char *finam
 #pragma pack(push, 1)
 using blade_sample_type = std::complex<int16_t>;
 enum class blade_speed_buffer_type { HS, SS };
-template <blade_speed_buffer_type T> struct blade_usb_message {
+template <blade_speed_buffer_type T>
+struct blade_usb_message {
 	uint32_t reserved;
 	uint64_t ts;
 	uint32_t meta_flags;
@@ -76,7 +79,8 @@ template <blade_speed_buffer_type T> struct blade_usb_message {
 
 static_assert(sizeof(blade_usb_message<blade_speed_buffer_type::SS>) == 2048, "blade buffer mismatch!");
 static_assert(sizeof(blade_usb_message<blade_speed_buffer_type::HS>) == 1024, "blade buffer mismatch!");
-template <unsigned int SZ, blade_speed_buffer_type T> struct blade_otw_buffer {
+template <unsigned int SZ, blade_speed_buffer_type T>
+struct blade_otw_buffer {
 	static_assert((SZ >= 2 && !(SZ % 2)), "min size is 2x usb buffer!");
 	blade_usb_message<T> m[SZ];
 	int actual_samples_per_msg()
@@ -172,7 +176,8 @@ template <unsigned int SZ, blade_speed_buffer_type T> struct blade_otw_buffer {
 };
 #pragma pack(pop)
 
-template <unsigned int SZ, blade_speed_buffer_type T> struct blade_otw_buffer_helper {
+template <unsigned int SZ, blade_speed_buffer_type T>
+struct blade_otw_buffer_helper {
 	static_assert((SZ >= 1024 && ((SZ & (SZ - 1)) == 0)), "only buffer size multiples of 1024 allowed!");
 	static blade_otw_buffer<SZ / 512, T> x;
 };
@@ -181,17 +186,19 @@ using dev_buf_t = typeof(blade_otw_buffer_helper<BLADE_BUFFER_SIZE, blade_speed_
 // using buf_in_use = blade_otw_buffer<2, blade_speed_buffer_type::SS>;
 using bh_fn_t = std::function<int(dev_buf_t *)>;
 
-template <typename T> struct blade_hw {
+template <typename T>
+struct blade_hw {
 	struct bladerf *dev;
 	struct bladerf_stream *rx_stream;
 	struct bladerf_stream *tx_stream;
 	// using pkt2buf = blade_otw_buffer<2, blade_speed_buffer_type::SS>;
-	using tx_buf_q_type = spsc_cond<BLADE_NUM_BUFFERS, dev_buf_t *, true, false>;
+	using tx_buf_q_type = spsc_cond_timeout<BLADE_NUM_BUFFERS, dev_buf_t *, true, false>;
 	const unsigned int rxFullScale, txFullScale;
 	const int rxtxdelay;
 
 	float rxgain, txgain;
-	static std::atomic<bool> stop_me_flag;
+	static std::atomic<bool> stop_lower_threads_flag;
+	double rxfreq_cache, txfreq_cache;
 
 	struct ms_trx_config {
 		int tx_freq;
@@ -216,7 +223,9 @@ template <typename T> struct blade_hw {
 	{
 		close_device();
 	}
-	blade_hw() : rxFullScale(2047), txFullScale(2047), rxtxdelay(-60)
+	blade_hw()
+		: rxFullScale(2047), txFullScale(2047), rxtxdelay(-60), rxgain(30), txgain(30), rxfreq_cache(0),
+		  txfreq_cache(0)
 	{
 	}
 
@@ -245,6 +254,7 @@ template <typename T> struct blade_hw {
 
 		bladerf_log_set_verbosity(BLADERF_LOG_LEVEL_DEBUG);
 		bladerf_set_usb_reset_on_open(true);
+
 		blade_check(bladerf_open, &dev, "");
 		if (!dev) {
 			std::cerr << "open failed, device missing?" << std::endl;
@@ -259,7 +269,8 @@ template <typename T> struct blade_hw {
 
 		bool is_locked;
 		blade_check(bladerf_set_pll_enable, dev, true);
-		blade_check(bladerf_set_pll_refclk, dev, 10000000UL);
+		uint64_t refclock = 10000000UL;
+		blade_check(bladerf_set_pll_refclk, dev, refclock);
 		for (int i = 0; i < 20; i++) {
 			usleep(50 * 1000);
 			bladerf_get_pll_lock_state(dev, &is_locked);
@@ -284,13 +295,13 @@ template <typename T> struct blade_hw {
 			    (bladerf_bandwidth *)NULL);
 
 		blade_check(bladerf_set_gain_mode, dev, BLADERF_CHANNEL_RX(0), BLADERF_GAIN_MGC);
-		blade_check(bladerf_set_gain, dev, BLADERF_CHANNEL_RX(0), (bladerf_gain)30);
-		blade_check(bladerf_set_gain, dev, BLADERF_CHANNEL_TX(0), (bladerf_gain)30);
-		usleep(1000);
-		blade_check(bladerf_enable_module, dev, BLADERF_MODULE_RX, true);
-		usleep(1000);
-		blade_check(bladerf_enable_module, dev, BLADERF_MODULE_TX, true);
+		setRxGain(rxgain, 0);
+		setTxGain(txgain, 0);
 		usleep(1000);
+
+		bladerf_set_stream_timeout(dev, BLADERF_TX, 10);
+		bladerf_set_stream_timeout(dev, BLADERF_RX, 10);
+
 		blade_check(bladerf_init_stream, &rx_stream, dev, getrxcb(rxh), &buf_mgmt.rx_samples, BLADE_NUM_BUFFERS,
 			    BLADERF_FORMAT_SC16_Q11_META, BLADE_BUFFER_SIZE, NUM_TRANSFERS, (void *)this);
 
@@ -302,28 +313,33 @@ template <typename T> struct blade_hw {
 			buf_mgmt.bufptrqueue.spsc_push(&cur_buffer[i]);
 		}
 
-		setRxGain(20);
-		setTxGain(30);
-
-		usleep(1000);
-
-		// bladerf_set_stream_timeout(dev, BLADERF_TX, 4);
-		// bladerf_set_stream_timeout(dev, BLADERF_RX, 4);
-
 		return 0;
 	}
 
+	void actually_enable_streams()
+	{
+		blade_check(bladerf_enable_module, dev, BLADERF_MODULE_RX, true);
+		usleep(1000);
+		blade_check(bladerf_enable_module, dev, BLADERF_MODULE_TX, true);
+	}
+
 	bool tuneTx(double freq, size_t chan = 0)
 	{
+		if (txfreq_cache == freq)
+			return true;
 		msleep(15);
 		blade_check(bladerf_set_frequency, dev, BLADERF_CHANNEL_TX(0), (bladerf_frequency)freq);
+		txfreq_cache = freq;
 		msleep(15);
 		return true;
 	};
 	bool tuneRx(double freq, size_t chan = 0)
 	{
+		if (rxfreq_cache == freq)
+			return true;
 		msleep(15);
 		blade_check(bladerf_set_frequency, dev, BLADERF_CHANNEL_RX(0), (bladerf_frequency)freq);
+		rxfreq_cache = freq;
 		msleep(15);
 		return true;
 	};
@@ -379,7 +395,7 @@ template <typename T> struct blade_hw {
 			static int to_skip = 0;
 			dev_buf_t *rcd = (dev_buf_t *)samples;
 
-			if (stop_me_flag)
+			if (stop_lower_threads_flag)
 				return BLADERF_STREAM_SHUTDOWN;
 
 			if (to_skip < 120) // prevents weird overflows on startup
@@ -404,7 +420,7 @@ template <typename T> struct blade_hw {
 			if (samples) // put buffer address back into queue, ready to be reused
 				trx->buf_mgmt.bufptrqueue.spsc_push(&ptr);
 
-			if (stop_me_flag)
+			if (stop_lower_threads_flag)
 				return BLADERF_STREAM_SHUTDOWN;
 
 			return BLADERF_STREAM_NO_DATA;
@@ -413,9 +429,12 @@ template <typename T> struct blade_hw {
 
 	auto get_rx_burst_handler_fn(bh_fn_t burst_handler)
 	{
-		auto fn = [this] {
-			int status;
-			status = bladerf_stream(rx_stream, BLADERF_RX_X1);
+		using thist = decltype(this);
+		auto fn = [](void *args) -> void * {
+			thist t = reinterpret_cast<thist>(args);
+			int status = 0;
+			if (!stop_lower_threads_flag)
+				status = bladerf_stream(t->rx_stream, BLADERF_RX_X1);
 			if (status < 0)
 				std::cerr << "rx stream error! " << bladerf_strerror(status) << std::endl;
 
@@ -425,9 +444,12 @@ template <typename T> struct blade_hw {
 	}
 	auto get_tx_burst_handler_fn(bh_fn_t burst_handler)
 	{
-		auto fn = [this] {
-			int status;
-			status = bladerf_stream(tx_stream, BLADERF_TX_X1);
+		using thist = decltype(this);
+		auto fn = [](void *args) -> void * {
+			thist t = reinterpret_cast<thist>(args);
+			int status = 0;
+			if (!stop_lower_threads_flag)
+				status = bladerf_stream(t->tx_stream, BLADERF_TX_X1);
 			if (status < 0)
 				std::cerr << "rx stream error! " << bladerf_strerror(status) << std::endl;
 
@@ -438,9 +460,15 @@ template <typename T> struct blade_hw {
 
 	void submit_burst_ts(blade_sample_type *buffer, int len, uint64_t ts)
 	{
-		//get empty bufer from list
 		tx_buf_q_type::elem_t rcd;
 
+		// exit by submitting a dummy buffer to assure the libbladerf stream mutex is happy (thread!)
+		if (!buffer) {
+			bladerf_submit_stream_buffer(tx_stream, (void *)BLADERF_STREAM_SHUTDOWN, 1000);
+			return;
+		}
+
+		//get empty bufer from list
 		while (!buf_mgmt.bufptrqueue.spsc_pop(&rcd))
 			buf_mgmt.bufptrqueue.spsc_prep_pop();
 		assert(rcd != nullptr);

Transceiver52M/ms/itrq.h

@@ -29,7 +29,58 @@
 
 namespace spsc_detail
 {
-template <bool block_read, bool block_write> class spsc_cond_detail {
+template <bool block_read, bool block_write>
+class spsc_cond_timeout_detail {
+	std::condition_variable cond_r, cond_w;
+	std::mutex lr, lw;
+	std::atomic_int r_flag, w_flag;
+	const int timeout_ms = 200;
+
+    public:
+	explicit spsc_cond_timeout_detail() : r_flag(0), w_flag(0)
+	{
+	}
+
+	~spsc_cond_timeout_detail()
+	{
+	}
+
+	ssize_t spsc_check_r()
+	{
+		std::unique_lock<std::mutex> lk(lr);
+		if (cond_r.wait_for(lk, std::chrono::milliseconds(timeout_ms), [&] { return r_flag != 0; })) {
+			r_flag--;
+			return 1;
+		} else {
+			return 0;
+		}
+	}
+	ssize_t spsc_check_w()
+	{
+		std::unique_lock<std::mutex> lk(lw);
+		if (cond_w.wait_for(lk, std::chrono::milliseconds(timeout_ms), [&] { return w_flag != 0; })) {
+			w_flag--;
+			return 1;
+		} else {
+			return 0;
+		}
+	}
+	void spsc_notify_r()
+	{
+		std::unique_lock<std::mutex> lk(lr);
+		r_flag++;
+		cond_r.notify_one();
+	}
+	void spsc_notify_w()
+	{
+		std::unique_lock<std::mutex> lk(lw);
+		w_flag++;
+		cond_w.notify_one();
+	}
+};
+
+template <bool block_read, bool block_write>
+class spsc_cond_detail {
 	std::condition_variable cond_r, cond_w;
 	std::mutex lr, lw;
 	std::atomic_int r_flag, w_flag;
@@ -74,7 +125,8 @@ template <bool block_read, bool block_write> class spsc_cond_detail {
 };
 
 // originally designed for select loop integration
-template <bool block_read, bool block_write> class spsc_efd_detail {
+template <bool block_read, bool block_write>
+class spsc_efd_detail {
 	int efd_r, efd_w; /* eventfds used to block/notify readers/writers */
 
     public:
@@ -191,4 +243,7 @@ class spsc : public T<block_read, block_write> {
 template <unsigned int SZ, typename ELEM, bool block_read, bool block_write>
 class spsc_evfd : public spsc_detail::spsc<SZ, ELEM, block_read, block_write, spsc_detail::spsc_efd_detail> {};
 template <unsigned int SZ, typename ELEM, bool block_read, bool block_write>
-class spsc_cond : public spsc_detail::spsc<SZ, ELEM, block_read, block_write, spsc_detail::spsc_cond_detail> {};
+class spsc_cond : public spsc_detail::spsc<SZ, ELEM, block_read, block_write, spsc_detail::spsc_cond_detail> {};
+template <unsigned int SZ, typename ELEM, bool block_read, bool block_write>
+class spsc_cond_timeout
+	: public spsc_detail::spsc<SZ, ELEM, block_read, block_write, spsc_detail::spsc_cond_timeout_detail> {};

Transceiver52M/ms/l1ctl_server_cb.cpp

@@ -24,13 +24,10 @@ extern "C" {
 #include <osmocom/bb/trxcon/trxcon_fsm.h>
 #include <osmocom/bb/trxcon/l1ctl_server.h>
 }
+#include "ms_trxcon_if.h"
 
 static struct l1ctl_server_cfg server_cfg;
 static struct l1ctl_server *server = NULL;
-namespace trxcon
-{
-extern struct trxcon_inst *g_trxcon;
-}
 
 static int l1ctl_rx_cb(struct l1ctl_client *l1c, struct msgb *msg)
 {
@@ -41,9 +38,9 @@ static int l1ctl_rx_cb(struct l1ctl_client *l1c, struct msgb *msg)
 
 static void l1ctl_conn_accept_cb(struct l1ctl_client *l1c)
 {
-	l1c->log_prefix = talloc_strdup(l1c, trxcon::g_trxcon->log_prefix);
-	l1c->priv = trxcon::g_trxcon;
-	trxcon::g_trxcon->l2if = l1c;
+	l1c->log_prefix = talloc_strdup(l1c, g_trxcon->log_prefix);
+	l1c->priv = g_trxcon;
+	g_trxcon->l2if = l1c;
 }
 
 static void l1ctl_conn_close_cb(struct l1ctl_client *l1c)
@@ -56,17 +53,13 @@ static void l1ctl_conn_close_cb(struct l1ctl_client *l1c)
 	osmo_fsm_inst_dispatch(trxcon->fi, TRXCON_EV_L2IF_FAILURE, NULL);
 }
 
-namespace trxcon
-{
 bool trxc_l1ctl_init(void *tallctx)
 {
 	/* Start the L1CTL server */
 	server_cfg = (struct l1ctl_server_cfg){
 		/* TODO: make path configurable */
-		.sock_path = "/tmp/osmocom_l2",
-		.num_clients_max = 1,
-		.conn_read_cb = &l1ctl_rx_cb,
-		.conn_accept_cb = &l1ctl_conn_accept_cb,
+		.sock_path = "/tmp/osmocom_l2",	       .num_clients_max = 1,
+		.conn_read_cb = &l1ctl_rx_cb,	       .conn_accept_cb = &l1ctl_conn_accept_cb,
 		.conn_close_cb = &l1ctl_conn_close_cb,
 	};
 
@@ -76,4 +69,3 @@ bool trxc_l1ctl_init(void *tallctx)
 	}
 	return true;
 }
-} // namespace trxcon

Transceiver52M/ms/logging.c

@@ -1,5 +1,7 @@
 /*
- * (C) 2016-2022 by Vadim Yanitskiy <axilirator@gmail.com>
+ * OsmocomBB <-> SDR connection bridge
+ *
+ * (C) 2016-2017 by Vadim Yanitskiy <axilirator@gmail.com>
  *
  * All Rights Reserved
  *
@@ -19,48 +21,61 @@
 #include <osmocom/core/logging.h>
 #include <osmocom/core/utils.h>
 
-#include <osmocom/bb/trxcon/logging.h>
 #include <osmocom/bb/trxcon/trxcon.h>
+#include <osmocom/bb/trxcon/logging.h>
 
 static struct log_info_cat trxcon_log_info_cat[] = {
 	[DAPP] = {
 		.name = "DAPP",
-		.color = "\033[1;35m",
 		.description = "Application",
-		.loglevel = LOGL_NOTICE,
-		.enabled = 1,
+		.color = "\033[1;35m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
 	[DL1C] = {
 		.name = "DL1C",
-		.color = "\033[1;31m",
 		.description = "Layer 1 control interface",
-		.loglevel = LOGL_NOTICE,
-		.enabled = 1,
+		.color = "\033[1;31m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
 	[DL1D] = {
 		.name = "DL1D",
-		.color = "\033[1;31m",
 		.description = "Layer 1 data",
-		.loglevel = LOGL_NOTICE,
-		.enabled = 1,
+		.color = "\033[1;31m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DTRXC] = {
+		.name = "DTRXC",
+		.description = "Transceiver control interface",
+		.color = "\033[1;33m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DTRXD] = {
+		.name = "DTRXD",
+		.description = "Transceiver data interface",
+		.color = "\033[1;33m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
 	[DSCH] = {
 		.name = "DSCH",
-		.color = "\033[1;36m",
 		.description = "Scheduler management",
-		.loglevel = LOGL_NOTICE,
-		.enabled = 0,
+		.color = "\033[1;36m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
 	[DSCHD] = {
 		.name = "DSCHD",
-		.color = "\033[1;36m",
 		.description = "Scheduler data",
-		.loglevel = LOGL_NOTICE,
-		.enabled = 0,
+		.color = "\033[1;36m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DGPRS] = {
+		.name = "DGPRS",
+		.description = "L1 GPRS (MAC layer)",
+		.color = "\033[1;36m",
+		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
 };
 
-static struct log_info trxcon_log_info = {
+static const struct log_info trxcon_log_info = {
 	.cat = trxcon_log_info_cat,
 	.num_cat = ARRAY_SIZE(trxcon_log_info_cat),
 };
@@ -71,11 +86,13 @@ static const int trxcon_log_cfg[] = {
 	[TRXCON_LOGC_L1D] = DL1D,
 	[TRXCON_LOGC_SCHC] = DSCH,
 	[TRXCON_LOGC_SCHD] = DSCHD,
+	[TRXCON_LOGC_GPRS] = DGPRS,
 };
 
 void trxc_log_init(void *tallctx)
 {
 	osmo_init_logging2(tallctx, &trxcon_log_info);
+	log_target_file_switch_to_wqueue(osmo_stderr_target);
 
 	trxcon_set_log_cfg(&trxcon_log_cfg[0], ARRAY_SIZE(trxcon_log_cfg));
 }

Transceiver52M/ms/ms.cpp

@@ -29,18 +29,14 @@
 #include <thread>
 #include <fstream>
 
-#include "sigProcLib.h"
-
 #include "ms.h"
-#include "ms_rx_burst.h"
-#include "grgsm_vitac/grgsm_vitac.h"
 
 extern "C" {
 #include "sch.h"
-#include "convolve.h"
-#include "convert.h"
 }
 
+#include "threadsched.h"
+
 dummylog ms_trx::dummy_log;
 
 #ifdef DBGXX
@@ -49,199 +45,13 @@ const int offset_start = -15;
 static int offset_ctr = 0;
 #endif
 
-template <> std::atomic<bool> ms_trx::base::stop_me_flag(false);
-
-void tx_test(ms_trx *t, ts_hitter_q_t *q, unsigned int *tsc)
-{
-	sched_param sch_params;
-	sch_params.sched_priority = sched_get_priority_max(SCHED_FIFO);
-	pthread_setschedparam(pthread_self(), SCHED_FIFO, &sch_params);
-
-	auto burst = genRandAccessBurst(0, 4, 0);
-	scaleVector(*burst, t->txFullScale * 0.7);
-
-	// float -> int16
-	blade_sample_type burst_buf[burst->size()];
-	convert_and_scale<int16_t, float>(burst_buf, burst->begin(), burst->size() * 2, 1);
-
-	while (1) {
-		GSM::Time target;
-		while (!q->spsc_pop(&target)) {
-			q->spsc_prep_pop();
-		}
-
-		std::cerr << std::endl << "\x1B[32m hitting " << target.FN() << "\033[0m" << std::endl;
-
-		int timing_advance = 0;
-		int64_t now_ts;
-		GSM::Time now_time;
-		target.incTN(3); // ul dl offset
-		int target_fn = target.FN();
-		int target_tn = target.TN();
-		t->timekeeper.get_both(&now_time, &now_ts);
-
-		auto diff_fn = GSM::FNDelta(target_fn, now_time.FN());
-		int diff_tn = (target_tn - (int)now_time.TN()) % 8;
-		auto tosend = GSM::Time(diff_fn, 0);
-
-		if (diff_tn > 0)
-			tosend.incTN(diff_tn);
-		else if (diff_tn < 0)
-			tosend.decTN(-diff_tn);
-
-		// in thory fn equal and tn+3 equal is also a problem...
-		if (diff_fn < 0 || (diff_fn == 0 && (now_time.TN() - target_tn < 1))) {
-			std::cerr << "## TX too late?! fn DIFF:" << diff_fn << " tn LOCAL: " << now_time.TN()
-				  << " tn OTHER: " << target_tn << std::endl;
-			return;
-		}
-
-		auto check = now_time + tosend;
-		int64_t send_ts =
-			now_ts + tosend.FN() * 8 * ONE_TS_BURST_LEN + tosend.TN() * ONE_TS_BURST_LEN - timing_advance;
-
-#ifdef DBGXX
-		std::cerr << "## fn DIFF: " << diff_fn << " ## tn DIFF: " << diff_tn << " tn LOCAL: " << now_time.TN()
-			  << " tn OTHER: " << target_tn << " tndiff" << diff_tn << " tosend:" << tosend.FN() << ":"
-			  << tosend.TN() << " calc: " << check.FN() << ":" << check.TN() << " target: " << target.FN()
-			  << ":" << target.TN() << " ts now: " << now_ts << " target ts:" << send_ts << std::endl;
-#endif
-
-		unsigned int pad = 4 * 25;
-		blade_sample_type buf2[burst->size() + pad];
-		std::fill(buf2, buf2 + pad, 0);
-
-		memcpy(&buf2[pad], burst_buf, burst->size() * sizeof(blade_sample_type));
-
-		assert(target.FN() == check.FN());
-		assert(target.TN() == check.TN());
-		assert(target.FN() % 51 == 21);
-#ifdef DBGXX
-		auto this_offset = offset_start + (offset_ctr++ % offsetrange);
-		std::cerr << "-- O " << this_offset << std::endl;
-		send_ts = now_ts - timing_advance +
-			  ((target.FN() * 8 + (int)target.TN()) - (now_time.FN() * 8 + (int)now_time.TN())) *
-				  ONE_TS_BURST_LEN;
-#endif
-		t->submit_burst_ts(buf2, burst->size() + pad, send_ts - pad);
-#ifdef DBGXX
-		signalVector test(burst->size() + pad);
-		convert_and_scale<float, int16_t>(test.begin(), buf2, burst->size() * 2 + pad, 1.f / float(scale));
-		estim_burst_params ebp;
-		auto det = detectAnyBurst(test, 0, 4, 4, CorrType::RACH, 40, &ebp);
-		if (det > 0)
-			std::cerr << "## Y " << ebp.toa << std::endl;
-		else
-			std::cerr << "## NOOOOOOOOO " << ebp.toa << std::endl;
-#endif
-	}
-}
-#ifdef SYNCTHINGONLY
-template <typename A> auto parsec(std::vector<std::string> &v, A &itr, std::string arg, bool *rv)
-{
-	if (*itr == arg) {
-		*rv = true;
-		return true;
-	}
-	return false;
-}
-
-template <typename A, typename B, typename C>
-bool parsec(std::vector<std::string> &v, A &itr, std::string arg, B f, C *rv)
-{
-	if (*itr == arg) {
-		itr++;
-		if (itr != v.end()) {
-			*rv = f(itr->c_str());
-			return true;
-		}
-	}
-	return false;
-}
-template <typename A> bool parsec(std::vector<std::string> &v, A &itr, std::string arg, int scale, int *rv)
-{
-	return parsec(
-		v, itr, arg, [scale](const char *v) -> auto{ return atoi(v) * scale; }, rv);
-}
-template <typename A> bool parsec(std::vector<std::string> &v, A &itr, std::string arg, int scale, unsigned int *rv)
-{
-	return parsec(
-		v, itr, arg, [scale](const char *v) -> auto{ return atoi(v) * scale; }, rv);
-}
-
-int main(int argc, char *argv[])
-{
-	cpu_set_t cpuset;
-
-	CPU_ZERO(&cpuset);
-	CPU_SET(2, &cpuset);
-
-	auto rv = pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
-	if (rv < 0) {
-		std::cerr << "affinity: errreur! " << std::strerror(errno);
-		return 0;
-	}
-
-	unsigned int default_tx_freq(881000 * 1000), default_rx_freq(926000 * 1000);
-	unsigned int grx = 20, gtx = 20;
-	bool tx_flag = false;
-	pthread_setname_np(pthread_self(), "main");
-	convolve_init();
-	convert_init();
-	sigProcLibSetup();
-	initvita();
-
-	int status = 0;
-	auto trx = new ms_trx();
-	trx->do_auto_gain = true;
-
-	std::vector<std::string> args(argv + 1, argv + argc);
-	for (auto i = args.begin(); i != args.end(); ++i) {
-		parsec(args, i, "-r", 1000, &default_rx_freq);
-		parsec(args, i, "-t", 1000, &default_tx_freq);
-		parsec(args, i, "-gr", 1, &grx);
-		parsec(args, i, "-gt", 1, &gtx);
-		parsec(args, i, "-tx", &tx_flag);
-	}
-
-	std::cerr << "usage: " << argv[0] << " <rxfreq in khz, i.e. 926000> [txfreq in khz, i.e. 881000] [TX]"
-		  << std::endl
-		  << "rx" << (argc == 1 ? " (default) " : " ") << default_rx_freq << "hz, tx " << default_tx_freq
-		  << "hz" << std::endl
-		  << "gain rx " << grx << " gain tx " << gtx << std::endl
-		  << (tx_flag ? "##!!## RACH TX ACTIVE ##!!##" : "-- no rach tx --") << std::endl;
-
-	status = trx->init_dev_and_streams();
-	if (status < 0)
-		return status;
-	trx->tuneRx(default_rx_freq);
-	trx->tuneTx(default_tx_freq);
-	trx->setRxGain(grx);
-	trx->setTxGain(gtx);
-
-	if (status == 0) {
-		// FIXME: hacks! needs exit flag for detached threads!
-
-		std::thread(rcv_bursts_test, &trx->rxqueue, &trx->mTSC, trx->rxFullScale).detach();
-		if (tx_flag)
-			std::thread(tx_test, trx, &trx->ts_hitter_q, &trx->mTSC).detach();
-		trx->start();
-		do {
-			sleep(1);
-		} while (1);
-
-		trx->stop_threads();
-	}
-	delete trx;
-
-	return status;
-}
-#endif
+template <>
+std::atomic<bool> ms_trx::base::stop_lower_threads_flag(false);
 
 int ms_trx::init_dev_and_streams()
 {
 	int status = 0;
-	status = base::init_device(rx_bh(), tx_bh());
+	status = init_device(rx_bh(), tx_bh());
 	if (status < 0) {
 		std::cerr << "failed to init dev!" << std::endl;
 		return -1;
@@ -270,16 +80,18 @@ bh_fn_t ms_trx::tx_bh()
 	};
 }
 
-void ms_trx::start()
+void ms_trx::start_lower_ms()
 {
+	if (stop_lower_threads_flag)
+		return;
 	auto fn = get_rx_burst_handler_fn(rx_bh());
-	rx_task = std::thread(fn);
-	set_name_aff_sched(rx_task.native_handle(), "rxrun", 2, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 2);
+	lower_rx_task = spawn_worker_thread(sched_params::thread_names::RXRUN, fn, this);
 
 	usleep(1000);
 	auto fn2 = get_tx_burst_handler_fn(tx_bh());
-	tx_task = std::thread(fn2);
-	set_name_aff_sched(tx_task.native_handle(), "txrun", 2, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 1);
+	lower_tx_task = spawn_worker_thread(sched_params::thread_names::TXRUN, fn2, this);
+
+	actually_enable_streams();
 }
 
 void ms_trx::set_upper_ready(bool is_ready)
@@ -289,11 +101,14 @@ void ms_trx::set_upper_ready(bool is_ready)
 
 void ms_trx::stop_threads()
 {
-	std::cerr << "killing threads...\r\n" << std::endl;
-	stop_me_flag = true;
+	std::cerr << "killing threads..." << std::endl;
+	stop_lower_threads_flag = true;
 	close_device();
-	rx_task.join();
-	tx_task.join();
+	std::cerr << "dev closed..." << std::endl;
+	pthread_join(lower_rx_task, nullptr);
+	std::cerr << "L rx dead..." << std::endl;
+	pthread_join(lower_tx_task, nullptr);
+	std::cerr << "L tx dead..." << std::endl;
 }
 
 void ms_trx::submit_burst(blade_sample_type *buffer, int len, GSM::Time target)
@@ -315,21 +130,22 @@ void ms_trx::submit_burst(blade_sample_type *buffer, int len, GSM::Time target)
 		tosend.decTN(-diff_tn);
 
 	// in theory fn equal and tn+3 equal is also a problem...
-	if (diff_fn < 0 || (diff_fn == 0 && (now_time.TN() - target_tn < 1))) {
+	if (diff_fn < 0 || (diff_fn == 0 && (target_tn-now_time.TN() < 3))) {
 		std::cerr << "## TX too late?! fn DIFF:" << diff_fn << " tn LOCAL: " << now_time.TN()
 			  << " tn OTHER: " << target_tn << std::endl;
 		return;
 	}
 
-	auto check = now_time + tosend;
 	int64_t send_ts = now_ts + tosend.FN() * 8 * ONE_TS_BURST_LEN + tosend.TN() * ONE_TS_BURST_LEN - timing_advance;
 #ifdef DBGXX
+	auto check = now_time + tosend;
 	std::cerr << "## fn DIFF: " << diff_fn << " ## tn DIFF: " << diff_tn << " tn LOCAL/OTHER: " << now_time.TN()
 		  << "/" << target_tn << " tndiff" << diff_tn << " tosend:" << tosend.FN() << ":" << tosend.TN()
 		  << " check: " << check.FN() << ":" << check.TN() << " target: " << target.FN() << ":" << target.TN()
 		  << " ts now: " << now_ts << " target ts:" << send_ts << std::endl;
 #endif
-#if 1
+#if 0
+	auto check = now_time + tosend;
 	unsigned int pad = 4 * 4;
 	blade_sample_type buf2[len + pad];
 	std::fill(buf2, buf2 + pad, 0);

Transceiver52M/ms/ms.h

@@ -26,7 +26,7 @@
 #include <cstdint>
 #include <mutex>
 #include <iostream>
-#include <thread>
+// #include <thread>
 
 #if defined(BUILDBLADE)
 #include "bladerf_specific.h"
@@ -38,30 +38,88 @@
 #error wat? no device..
 #endif
 
+#include "Complex.h"
 #include "GSMCommon.h"
 #include "itrq.h"
+#include "threadpool.h"
+#include "threadsched.h"
 
 const unsigned int ONE_TS_BURST_LEN = (3 + 58 + 26 + 58 + 3 + 8.25) * 4 /*sps*/;
-const unsigned int NUM_RXQ_FRAMES = 1; // rx thread <-> upper rx queue
 const unsigned int SCH_LEN_SPS = (ONE_TS_BURST_LEN * 8 /*ts*/ * 12 /*frames*/);
 
-template <typename T> void clamp_array(T *start2, unsigned int len, T max)
+template <typename T>
+void clamp_array(T *start2, unsigned int len, T max)
 {
-	for (int i = 0; i < len; i++) {
+	for (unsigned int i = 0; i < len; i++) {
 		const T t1 = start2[i] < -max ? -max : start2[i];
 		const T t2 = t1 > max ? max : t1;
 		start2[i] = t2;
 	}
 }
-template <typename DST_T, typename SRC_T, typename ST>
-void convert_and_scale(void *dst, void *src, unsigned int src_len, ST scale)
+
+namespace cvt_internal
+{
+
+template <typename SRC_T, typename ST>
+void convert_and_scale_i(float *dst, const SRC_T *src, unsigned int src_len, ST scale)
 {
 	for (unsigned int i = 0; i < src_len; i++)
-		reinterpret_cast<DST_T *>(dst)[i] = static_cast<DST_T>((reinterpret_cast<SRC_T *>(src)[i])) * scale;
+		dst[i] = static_cast<float>(src[i]) * scale;
 }
-template <typename DST_T, typename SRC_T> void convert_and_scale_default(void *dst, void *src, unsigned int src_len)
+
+template <typename DST_T, typename ST>
+void convert_and_scale_i(DST_T *dst, const float *src, unsigned int src_len, ST scale)
 {
-	return convert_and_scale<DST_T, SRC_T>(dst, src, src_len, SAMPLE_SCALE_FACTOR);
+	for (unsigned int i = 0; i < src_len; i++)
+		dst[i] = static_cast<DST_T>(src[i] * scale);
+}
+
+template <typename ST>
+void convert_and_scale_i(float *dst, const float *src, unsigned int src_len, ST scale)
+{
+	for (unsigned int i = 0; i < src_len; i++)
+		dst[i] = src[i] * scale;
+}
+
+template <typename T>
+struct is_complex : std::false_type {
+	using baset = T;
+	static const unsigned int len_mul = 1;
+};
+
+template <typename T>
+struct is_complex<std::complex<T>> : std::true_type {
+	using baset = typename std::complex<T>::value_type;
+	static const unsigned int len_mul = 2;
+};
+
+template <typename T>
+struct is_complex<Complex<T>> : std::true_type {
+	using baset = typename Complex<T>::value_type;
+	static const unsigned int len_mul = 2;
+};
+
+} // namespace cvt_internal
+
+template <typename DST_T, typename SRC_T, typename ST>
+void convert_and_scale(DST_T *dst, const SRC_T *src, unsigned int src_len, ST scale)
+{
+	using vd = typename cvt_internal::is_complex<DST_T>::baset;
+	using vs = typename cvt_internal::is_complex<SRC_T>::baset;
+	return cvt_internal::convert_and_scale_i((vd *)dst, (vs *)src, src_len, scale);
+}
+
+template <typename array_t>
+float normed_abs_sum(array_t *src, int len)
+{
+	using vd = typename cvt_internal::is_complex<array_t>::baset;
+	auto len_mul = cvt_internal::is_complex<array_t>::len_mul;
+	auto ptr = reinterpret_cast<const vd *>(src);
+	float sum = 0;
+	for (unsigned int i = 0; i < len * len_mul; i++)
+		sum += std::abs(ptr[i]);
+	sum /= len * len_mul;
+	return sum;
 }
 
 struct one_burst {
@@ -75,7 +133,7 @@ struct one_burst {
 	};
 };
 
-using rx_queue_t = spsc_cond<8 * NUM_RXQ_FRAMES, one_burst, true, true>;
+using rx_queue_t = spsc_cond_timeout<4, one_burst, true, false>;
 
 enum class SCH_STATE { SEARCHING, FOUND };
 
@@ -161,7 +219,21 @@ class time_keeper {
 
 using ts_hitter_q_t = spsc_cond<64, GSM::Time, true, false>;
 
-struct ms_trx : public BASET {
+// used to globally initialize the sched/hw information
+struct sched_hw_info {
+	int hw_cpus;
+	sched_params::target hw_target;
+
+	sched_hw_info()
+	{
+		hw_cpus = std::thread::hardware_concurrency();
+		hw_target = hw_cpus > 4 ? sched_params::target::ODROID : sched_params::target::PI4;
+		set_sched_target(hw_target);
+		std::cerr << "scheduling for: " << (hw_cpus > 4 ? "odroid" : "pi4") << std::endl;
+	}
+};
+
+struct ms_trx : public BASET, public sched_hw_info {
 	using base = BASET;
 	static dummylog dummy_log;
 	unsigned int mTSC;
@@ -169,15 +241,12 @@ struct ms_trx : public BASET {
 	int timing_advance;
 	bool do_auto_gain;
 
-	std::thread rx_task;
-	std::thread tx_task;
-	std::thread *calcrval_task;
+	pthread_t lower_rx_task;
+	pthread_t lower_tx_task;
 
 	// provides bursts to upper rx thread
 	rx_queue_t rxqueue;
-#ifdef SYNCTHINGONLY
-	ts_hitter_q_t ts_hitter_q;
-#endif
+
 	blade_sample_type *first_sch_buf;
 	blade_sample_type *burst_copy_buffer;
 
@@ -189,18 +258,18 @@ struct ms_trx : public BASET {
 	int64_t first_sch_ts_start = -1;
 
 	time_keeper timekeeper;
+	single_thread_pool worker_thread; // uses base class sched target hw info
 
-	void start();
+	void start_lower_ms();
 	std::atomic<bool> upper_is_ready;
 	void set_upper_ready(bool is_ready);
 
 	bool handle_sch_or_nb();
 	bool handle_sch(bool first = false);
-	bool decode_sch(float *bits, bool update_global_clock);
+	bool decode_sch(char *bits, bool update_global_clock);
 	SCH_STATE search_for_sch(dev_buf_t *rcd);
 	void grab_bursts(dev_buf_t *rcd);
 
-	int init_device();
 	int init_dev_and_streams();
 	void stop_threads();
 	void *rx_cb(ms_trx *t);
@@ -208,8 +277,10 @@ struct ms_trx : public BASET {
 	void maybe_update_gain(one_burst &brst);
 
 	ms_trx()
-		: timing_advance(0), do_auto_gain(false), rxqueue(), first_sch_buf(new blade_sample_type[SCH_LEN_SPS]),
-		  burst_copy_buffer(new blade_sample_type[ONE_TS_BURST_LEN]), rcv_done{ false }, sch_thread_done{ false }
+		: mTSC(0), mBSIC(0), timing_advance(0), do_auto_gain(false), rxqueue(),
+		  first_sch_buf(new blade_sample_type[SCH_LEN_SPS]),
+		  burst_copy_buffer(new blade_sample_type[ONE_TS_BURST_LEN]), first_sch_buf_rcv_ts(0),
+		  rcv_done{ false }, sch_thread_done{ false }, upper_is_ready(false)
 	{
 	}
 
@@ -227,34 +298,4 @@ struct ms_trx : public BASET {
 		assert(val > -127 && val < 128);
 		timing_advance = val * 4;
 	}
-
-	void set_name_aff_sched(const char *name, int cpunum, int schedtype, int prio)
-	{
-		set_name_aff_sched(pthread_self(), name, cpunum, schedtype, prio);
-	}
-
-	void set_name_aff_sched(std::thread::native_handle_type h, const char *name, int cpunum, int schedtype,
-				int prio)
-	{
-		pthread_setname_np(h, name);
-
-		cpu_set_t cpuset;
-
-		CPU_ZERO(&cpuset);
-		CPU_SET(cpunum, &cpuset);
-
-		auto rv = pthread_setaffinity_np(h, sizeof(cpuset), &cpuset);
-		if (rv < 0) {
-			std::cerr << name << " affinity: errreur! " << std::strerror(errno);
-			return exit(0);
-		}
-
-		sched_param sch_params;
-		sch_params.sched_priority = prio;
-		rv = pthread_setschedparam(h, schedtype, &sch_params);
-		if (rv < 0) {
-			std::cerr << name << " sched: errreur! " << std::strerror(errno);
-			return exit(0);
-		}
-	}
 };

Transceiver52M/ms/ms_rx_burst_test.cpp

@@ -1,207 +0,0 @@
-/*
- * (C) 2022 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
- * All Rights Reserved
- *
- * Author: Eric Wild <ewild@sysmocom.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#include "ms.h"
-#include "sigProcLib.h"
-#include "signalVector.h"
-#include "grgsm_vitac/grgsm_vitac.h"
-extern "C" {
-#include "sch.h"
-}
-
-#if !defined(SYNCTHINGONLY) || !defined(NODAMNLOG)
-#define DBGLG(...) ms_trx::dummy_log()
-#else
-#define DBGLG(...) std::cerr
-#endif
-
-#if !defined(SYNCTHINGONLY)
-#define DBGLG2(...) ms_trx::dummy_log()
-#else
-#define DBGLG2(...) std::cerr
-#endif
-
-static bool decode_sch(float *bits, bool update_global_clock)
-{
-	struct sch_info sch;
-	ubit_t info[GSM_SCH_INFO_LEN];
-	sbit_t data[GSM_SCH_CODED_LEN];
-
-	float_to_sbit(&bits[3], &data[0], 62, 39);
-	float_to_sbit(&bits[106], &data[39], 62, 39);
-
-	if (!gsm_sch_decode(info, data)) {
-		gsm_sch_parse(info, &sch);
-
-		DBGLG() << "SCH : Decoded values" << std::endl;
-		DBGLG() << "    BSIC: " << sch.bsic << std::endl;
-		DBGLG() << "    TSC: " << (sch.bsic & 0x7) << std::endl;
-		DBGLG() << "    T1  : " << sch.t1 << std::endl;
-		DBGLG() << "    T2  : " << sch.t2 << std::endl;
-		DBGLG() << "    T3p : " << sch.t3p << std::endl;
-		DBGLG() << "    FN  : " << gsm_sch_to_fn(&sch) << std::endl;
-		return true;
-	}
-	return false;
-}
-
-static void check_rcv_fn(GSM::Time t, bool first, unsigned int &lastfn, unsigned int &fnbm)
-{
-	if (first && t.TN() == 0) {
-		lastfn = t.FN();
-		fnbm = 1 << 0;
-		first = false;
-	}
-	if (!first && t.FN() != (int)lastfn) {
-		if (fnbm != 255)
-			std::cerr << "rx " << lastfn << ":" << fnbm << " " << __builtin_popcount(fnbm) << std::endl;
-		lastfn = t.FN();
-		fnbm = 1 << t.TN();
-	}
-
-	fnbm |= 1 << t.TN();
-}
-
-static void handle_it(one_burst &e, signalVector &burst, unsigned int tsc, int scale)
-{
-	std::fill(burst.begin(), burst.begin() + burst.size(), 0.0);
-	const auto is_sch = gsm_sch_check_ts(e.gsmts.TN(), e.gsmts.FN());
-	const auto is_fcch = gsm_fcch_check_ts(e.gsmts.TN(), e.gsmts.FN());
-
-	if (is_fcch)
-		return;
-
-	if (is_sch) {
-		char outbin[148];
-		convert_and_scale_default<float, int16_t>(burst.begin(), e.burst, ONE_TS_BURST_LEN * 2);
-		std::stringstream dbgout;
-#if 0
-		{
-			struct estim_burst_params ebp;
-			auto rv2 = detectSCHBurst(burst, 4, 4, sch_detect_type::SCH_DETECT_FULL, &ebp);
-			auto bits = demodAnyBurst(burst, SCH, 4, &ebp);
-			// clamp_array(bits->begin(), 148, 1.5f);
-			for (auto &i : *bits)
-				i = (i > 0 ? 1 : -1);
-
-			auto rv = decode_sch(bits->begin(), false);
-			dbgout << "U DET@" << (rv2 ? "yes " : "   ") << "Timing offset     " << ebp.toa
-			       << " symbols, DECODE: " << (rv ? "yes" : "---") << " ";
-
-			delete bits;
-		}
-#endif
-		{
-			convert_and_scale<float, float>(burst.begin(), burst.begin(), ONE_TS_BURST_LEN * 2,
-							1.f / float(scale));
-
-			std::complex<float> channel_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
-			auto ss = reinterpret_cast<std::complex<float> *>(burst.begin());
-			int d_c0_burst_start = get_sch_chan_imp_resp(ss, &channel_imp_resp[0]);
-			detect_burst(ss, &channel_imp_resp[0], d_c0_burst_start, outbin);
-
-			SoftVector bits;
-			bits.resize(148);
-			for (int i = 0; i < 148; i++) {
-				bits[i] = (!outbin[i]); // < 1 ? -1 : 1;
-			}
-
-			auto rv = decode_sch(bits.begin(), false);
-			dbgout << "U SCH@"
-			       << " " << e.gsmts.FN() << ":" << e.gsmts.TN() << " " << d_c0_burst_start
-			       << " DECODE:" << (rv ? "yes" : "---") << std::endl;
-		}
-
-		DBGLG() << dbgout.str();
-		return;
-	}
-#if 1
-	convert_and_scale<float, int16_t>(burst.begin(), e.burst, ONE_TS_BURST_LEN * 2, 1.f / float(scale));
-	// std::cerr << "@" << tsc << " " << e.gsmts.FN() << ":" << e.gsmts.TN() << " " << ebp.toa << " "
-	// 	  << std::endl;
-
-	char outbin[148];
-	auto ss = reinterpret_cast<std::complex<float> *>(burst.begin());
-	float ncmax, dcmax;
-	std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR], chan_imp_resp2[CHAN_IMP_RESP_LENGTH * d_OSR];
-	auto normal_burst_start = get_norm_chan_imp_resp(ss, &chan_imp_resp[0], &ncmax, tsc);
-	auto dummy_burst_start = get_norm_chan_imp_resp(ss, &chan_imp_resp2[0], &dcmax, TS_DUMMY);
-	auto is_nb = ncmax > dcmax;
-
-	DBGLG() << " U " << (is_nb ? "NB" : "DB") << "@ o nb: " << normal_burst_start << " o db: " << dummy_burst_start
-		<< std::endl;
-
-	if (is_nb)
-		detect_burst(ss, &chan_imp_resp[0], normal_burst_start, outbin);
-	else
-		detect_burst(ss, &chan_imp_resp2[0], dummy_burst_start, outbin);
-	;
-#ifdef DBGXX
-	// auto bits = SoftVector(148);
-	// for (int i = 0; i < 148; i++)
-	// 	(bits)[i] = outbin[i] < 1 ? -1 : 1;
-#endif
-#endif
-}
-
-void rcv_bursts_test(rx_queue_t *q, unsigned int *tsc, int scale)
-{
-	static bool first = true;
-	unsigned int lastfn = 0;
-	unsigned int fnbm = 0;
-	signalVector burst(ONE_TS_BURST_LEN, 100, 100);
-
-	cpu_set_t cpuset;
-
-	CPU_ZERO(&cpuset);
-	CPU_SET(1, &cpuset);
-
-	auto rv = pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
-	if (rv < 0) {
-		std::cerr << "affinity: errreur! " << std::strerror(errno);
-		exit(0);
-	}
-
-	int prio = sched_get_priority_max(SCHED_RR);
-	struct sched_param param;
-	param.sched_priority = prio;
-	rv = sched_setscheduler(0, SCHED_RR, &param);
-	if (rv < 0) {
-		std::cerr << "scheduler: errreur! " << std::strerror(errno);
-		exit(0);
-	}
-
-	while (1) {
-		one_burst e;
-		while (!q->spsc_pop(&e)) {
-			q->spsc_prep_pop();
-		}
-
-		check_rcv_fn(e.gsmts, first, lastfn, fnbm);
-
-		handle_it(e, burst, *tsc, scale);
-#ifdef DBGXX
-		rv = detectSCHBurst(*burst, 4, 4, sch_detect_type::SCH_DETECT_FULL, &ebp);
-		if (rv > 0)
-			std::cerr << "#" << e.gsmts.FN() << ":" << e.gsmts.TN() << " " << ebp.toa << std::endl;
-		sched_yield();
-#endif
-	}
-}

Transceiver52M/ms/ms_rx_lower.cpp

@@ -30,6 +30,8 @@
 #include "ms.h"
 #include "grgsm_vitac/grgsm_vitac.h"
 
+#include "threadpool.h"
+
 extern "C" {
 #include "sch.h"
 }
@@ -38,28 +40,29 @@ extern "C" {
 #undef LOG
 #endif
 
-#if !defined(SYNCTHINGONLY) //|| !defined(NODAMNLOG)
+#if !defined(NODAMNLOG)
 #define DBGLG(...) ms_trx::dummy_log()
 #else
 #define DBGLG(...) std::cerr
 #endif
 
-#if !defined(SYNCTHINGONLY) || !defined(NODAMNLOG)
+#if !defined(NODAMNLOG)
 #define DBGLG2(...) ms_trx::dummy_log()
 #else
 #define DBGLG2(...) std::cerr
 #endif
 
 #define PRINT_Q_OVERFLOW
-bool ms_trx::decode_sch(float *bits, bool update_global_clock)
+
+bool ms_trx::decode_sch(char *bits, bool update_global_clock)
 {
 	int fn;
 	struct sch_info sch;
 	ubit_t info[GSM_SCH_INFO_LEN];
 	sbit_t data[GSM_SCH_CODED_LEN];
 
-	float_to_sbit(&bits[3], &data[0], 1, 39);
-	float_to_sbit(&bits[106], &data[39], 1, 39);
+	memcpy(&data[0], &bits[3], 39);
+	memcpy(&data[39], &bits[106], 39);
 
 	if (!gsm_sch_decode(info, data)) {
 		gsm_sch_parse(info, &sch);
@@ -87,18 +90,6 @@ bool ms_trx::decode_sch(float *bits, bool update_global_clock)
 			// global_time_keeper.FN(fn);
 			// global_time_keeper.TN(0);
 		}
-#ifdef SYNCTHINGONLY
-		else {
-			int t3 = sch.t3p * 10 + 1;
-			if (t3 == 11) {
-				// timeslot hitter attempt @ fn 21 in mf
-				DBGLG2() << "sch @ " << t3 << std::endl;
-				auto e = GSM::Time(fn, 0);
-				e += 10;
-				ts_hitter_q.spsc_push(&e);
-			}
-		}
-#endif
 
 		return true;
 	}
@@ -113,11 +104,7 @@ void ms_trx::maybe_update_gain(one_burst &brst)
 	const unsigned int rx_max_cutoff = (rxFullScale * 2) / 3;
 	static int gain_check = 0;
 	static float runmean = 0;
-	float sum = 0;
-	for (auto i : brst.burst)
-		sum += abs(i.real()) + abs(i.imag());
-	sum /= ONE_TS_BURST_LEN * 2;
-
+	float sum = normed_abs_sum(&brst.burst[0], ONE_TS_BURST_LEN);
 	runmean = gain_check ? (runmean * (gain_check + 2) - 1 + sum) / (gain_check + 2) : sum;
 
 	if (gain_check == avgburst_num - 1) {
@@ -126,8 +113,11 @@ void ms_trx::maybe_update_gain(one_burst &brst)
 		gainoffset = runmean < (rxFullScale / 2 ? 2 : 1);
 		float newgain = runmean < rx_max_cutoff ? rxgain + gainoffset : rxgain - gainoffset;
 		// FIXME: gian cutoff
-		if (newgain != rxgain && newgain <= 60)
-			std::thread([this, newgain] { setRxGain(newgain); }).detach();
+		if (newgain != rxgain && newgain <= 60) {
+			auto gain_fun = [this, newgain] { setRxGain(newgain); };
+			worker_thread.add_task(gain_fun);
+		}
+
 		runmean = 0;
 	}
 	gain_check = (gain_check + 1) % avgburst_num;
@@ -150,14 +140,9 @@ bool ms_trx::handle_sch_or_nb()
 		handle_sch(false);
 		memcpy(brst.sch_bits, sch_demod_bits, sizeof(sch_demod_bits));
 	}
-#ifndef SYNCTHINGONLY
-	if (upper_is_ready) { // this is blocking, so only submit if there is a reader - only if upper exists!
-#endif
-		while (!rxqueue.spsc_push(&brst))
-			;
-#ifndef SYNCTHINGONLY
-	}
-#endif
+
+	while (upper_is_ready && !rxqueue.spsc_push(&brst))
+		;
 
 	if (do_auto_gain)
 		maybe_update_gain(brst);
@@ -172,36 +157,40 @@ bool ms_trx::handle_sch(bool is_first_sch_acq)
 	auto current_gsm_time = timekeeper.gsmtime();
 	const auto buf_len = is_first_sch_acq ? SCH_LEN_SPS : ONE_TS_BURST_LEN;
 	const auto which_in_buffer = is_first_sch_acq ? first_sch_buf : burst_copy_buffer;
+	memset((void *)&sch_acq_buffer[0], 0, sizeof(sch_acq_buffer));
+#if 1
 	const auto which_out_buffer = is_first_sch_acq ? sch_acq_buffer : &sch_acq_buffer[40 * 2];
 	const auto ss = reinterpret_cast<std::complex<float> *>(which_out_buffer);
 	std::complex<float> channel_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
-
 	int start;
-	memset((void *)&sch_acq_buffer[0], 0, sizeof(sch_acq_buffer));
+	convert_and_scale(which_out_buffer, which_in_buffer, buf_len * 2, 1.f / float(rxFullScale));
 	if (is_first_sch_acq) {
 		float max_corr = 0;
-		convert_and_scale<float, int16_t>(which_out_buffer, which_in_buffer, buf_len * 2,
-						  1.f / float(rxFullScale));
 		start = get_sch_buffer_chan_imp_resp(ss, &channel_imp_resp[0], buf_len, &max_corr);
-		detect_burst(&ss[start], &channel_imp_resp[0], 0, sch_demod_bits);
 	} else {
-		convert_and_scale<float, int16_t>(which_out_buffer, which_in_buffer, buf_len * 2,
-						  1.f / float(rxFullScale));
 		start = get_sch_chan_imp_resp(ss, &channel_imp_resp[0]);
 		start = start < 39 ? start : 39;
 		start = start > -39 ? start : -39;
-		detect_burst(&ss[start], &channel_imp_resp[0], 0, sch_demod_bits);
 	}
+	detect_burst_nb(&ss[start], &channel_imp_resp[0], 0, sch_demod_bits);
 
-	SoftVector bitss(148);
-	for (int i = 0; i < 148; i++) {
-		bitss[i] = (sch_demod_bits[i]);
-	}
+	auto sch_decode_success = decode_sch(sch_demod_bits, is_first_sch_acq);
+#if 0
+	auto burst = new signalVector(buf_len, 50);
+	const auto corr_type = is_first_sch_acq ? sch_detect_type::SCH_DETECT_BUFFER : sch_detect_type::SCH_DETECT_FULL;
+	struct estim_burst_params ebp;
 
-	auto sch_decode_success = decode_sch(bitss.begin(), is_first_sch_acq);
+	// scale like uhd, +-2k -> +-32k
+	convert_and_scale(burst->begin(), which_in_buffer, buf_len * 2, SAMPLE_SCALE_FACTOR);
 
+	auto rv = detectSCHBurst(*burst, 4, 4, corr_type, &ebp);
+
+	int howmuchdelay = ebp.toa * 4;
+	std::cerr << "ooffs: " << howmuchdelay << " " << std::endl;
+	std::cerr << "voffs: " << start << " " << sch_decode_success << std::endl;
+#endif
 	if (sch_decode_success) {
-		const auto ts_offset_symb = 0;
+		const auto ts_offset_symb = 4;
 		if (is_first_sch_acq) {
 			// update ts to first sample in sch buffer, to allow delay calc for current ts
 			first_sch_ts_start = first_sch_buf_rcv_ts + start - (ts_offset_symb * 4) - 1;
@@ -216,35 +205,132 @@ bool ms_trx::handle_sch(bool is_first_sch_acq)
 		DBGLG2() << "L SCH : \x1B[31m decode fail \033[0m @ toa:" << start << " " << current_gsm_time.FN()
 			 << ":" << current_gsm_time.TN() << std::endl;
 	}
+#else
+	const auto ts_offset_symb = 4;
+	auto burst = new signalVector(buf_len, 50);
+	const auto corr_type = is_first_sch_acq ? sch_detect_type::SCH_DETECT_BUFFER : sch_detect_type::SCH_DETECT_FULL;
+	struct estim_burst_params ebp;
+
+	// scale like uhd, +-2k -> +-32k
+	convert_and_scale(burst->begin(), which_in_buffer, buf_len * 2, SAMPLE_SCALE_FACTOR);
+
+	auto rv = detectSCHBurst(*burst, 4, 4, corr_type, &ebp);
+
+	int howmuchdelay = ebp.toa * 4;
+
+	if (!rv) {
+		delete burst;
+		DBGLG() << "SCH : \x1B[31m detect fail \033[0m NOOOOOOOOOOOOOOOOOO toa:" << ebp.toa << " "
+			<< current_gsm_time.FN() << ":" << current_gsm_time.TN() << std::endl;
+		return false;
+	}
+
+	SoftVector *bits;
+	if (is_first_sch_acq) {
+		// can't be legit with a buf size spanning _at least_ one SCH but delay that implies partial sch burst
+		if (howmuchdelay < 0 || (buf_len - howmuchdelay) < ONE_TS_BURST_LEN) {
+			delete burst;
+			return false;
+		}
+
+		struct estim_burst_params ebp2;
+		// auto sch_chunk = new signalVector(ONE_TS_BURST_LEN, 50);
+		// auto sch_chunk_start = sch_chunk->begin();
+		// memcpy(sch_chunk_start, sch_buf_f.data() + howmuchdelay, sizeof(std::complex<float>) * ONE_TS_BURST_LEN);
+
+		auto delay = delayVector(burst, NULL, -howmuchdelay);
+
+		scaleVector(*delay, (complex)1.0 / ebp.amp);
+
+		auto rv2 = detectSCHBurst(*delay, 4, 4, sch_detect_type::SCH_DETECT_FULL, &ebp2);
+		DBGLG() << "FIRST SCH : " << (rv2 ? "yes " : "   ") << "Timing offset     " << ebp2.toa << " symbols"
+			<< std::endl;
+
+		bits = demodAnyBurst(*delay, SCH, 4, &ebp2);
+		delete delay;
+	} else {
+		bits = demodAnyBurst(*burst, SCH, 4, &ebp);
+	}
+
+	delete burst;
+
+	// clamp to +-1.5 because +-127 softbits scaled by 64 after -0.5 can be at most +-1.5
+	clamp_array(bits->begin(), 148, 1.5f);
+
+	float_to_sbit(&bits->begin()[0], (signed char *)&sch_demod_bits[0], 62, 148);
+	// float_to_sbit(&bits->begin()[106], &data[39], 62, 39);
+
+	if (decode_sch((char *)sch_demod_bits, is_first_sch_acq)) {
+		auto current_gsm_time_updated = timekeeper.gsmtime();
+		if (is_first_sch_acq) {
+			// update ts to first sample in sch buffer, to allow delay calc for current ts
+			first_sch_ts_start = first_sch_buf_rcv_ts + howmuchdelay - (ts_offset_symb * 4);
+		} else {
+			// continuous sch tracking, only update if off too much
+			auto diff = [](float x, float y) { return x > y ? x - y : y - x; };
+
+			auto d = diff(ebp.toa, ts_offset_symb);
+			if (abs(d) > 0.3) {
+				if (ebp.toa < ts_offset_symb)
+					ebp.toa = d;
+				else
+					ebp.toa = -d;
+				temp_ts_corr_offset += ebp.toa * 4;
+
+				DBGLG() << "offs: " << ebp.toa << " " << temp_ts_corr_offset << std::endl;
+			}
+		}
+
+		auto a = gsm_sch_check_fn(current_gsm_time_updated.FN() - 1);
+		auto b = gsm_sch_check_fn(current_gsm_time_updated.FN());
+		auto c = gsm_sch_check_fn(current_gsm_time_updated.FN() + 1);
+		DBGLG() << "L SCH : Timing offset     " << rv << " " << ebp.toa << " " << a << b << c << "fn "
+			<< current_gsm_time_updated.FN() << ":" << current_gsm_time_updated.TN() << std::endl;
+
+		delete bits;
+		return true;
+	} else {
+		DBGLG2() << "L SCH : \x1B[31m decode fail \033[0m @ toa:" << ebp.toa << " " << current_gsm_time.FN()
+			 << ":" << current_gsm_time.TN() << std::endl;
+	}
+
+	delete bits;
+#endif
 	return false;
 }
 
+/*
+accumulates a full big buffer consisting of 8*12 timeslots, then:
+either
+1) adjusts gain if necessary and starts over
+2) searches and finds SCH and is done
+*/
 SCH_STATE ms_trx::search_for_sch(dev_buf_t *rcd)
 {
 	static unsigned int sch_pos = 0;
+	auto to_copy = SCH_LEN_SPS - sch_pos;
+
 	if (sch_thread_done)
 		return SCH_STATE::FOUND;
 
 	if (rcv_done)
 		return SCH_STATE::SEARCHING;
 
-	auto to_copy = SCH_LEN_SPS - sch_pos;
-
-	if (SCH_LEN_SPS == to_copy) // first time
+	if (sch_pos == 0) // keep first ts for time delta calc
 		first_sch_buf_rcv_ts = rcd->get_first_ts();
 
-	if (!to_copy) {
+	if (to_copy) {
+		auto spsmax = rcd->actual_samples_per_buffer();
+		if (to_copy > (unsigned int)spsmax)
+			sch_pos += rcd->readall(first_sch_buf + sch_pos);
+		else
+			sch_pos += rcd->read_n(first_sch_buf + sch_pos, 0, to_copy);
+	} else { // (!to_copy)
 		sch_pos = 0;
 		rcv_done = true;
-		std::thread([this] {
-			set_name_aff_sched("sch_search", 1, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 5);
-
-			auto ptr = reinterpret_cast<const int16_t *>(first_sch_buf);
+		auto sch_search_fun = [this] {
 			const auto target_val = rxFullScale / 8;
-			float sum = 0;
-			for (unsigned int i = 0; i < SCH_LEN_SPS * 2; i++)
-				sum += std::abs(ptr[i]);
-			sum /= SCH_LEN_SPS * 2;
+			float sum = normed_abs_sum(first_sch_buf, SCH_LEN_SPS);
 
 			//FIXME: arbitrary value, gain cutoff
 			if (sum > target_val || rxgain >= 60) // enough ?
@@ -257,16 +343,9 @@ SCH_STATE ms_trx::search_for_sch(dev_buf_t *rcd)
 
 			if (!sch_thread_done)
 				rcv_done = false; // retry!
-			return (bool)sch_thread_done;
-		}).detach();
+		};
+		worker_thread.add_task(sch_search_fun);
 	}
-
-	auto spsmax = rcd->actual_samples_per_buffer();
-	if (to_copy > (unsigned int)spsmax)
-		sch_pos += rcd->readall(first_sch_buf + sch_pos);
-	else
-		sch_pos += rcd->read_n(first_sch_buf + sch_pos, 0, to_copy);
-
 	return SCH_STATE::SEARCHING;
 }
 

Transceiver52M/ms/ms_trxcon_if.cpp

@@ -0,0 +1,78 @@
+/*
+ * (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Eric Wild <ewild@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <atomic>
+#include "ms_trxcon_if.h"
+extern "C" {
+#include <osmocom/bb/trxcon/trxcon.h>
+#include <osmocom/bb/trxcon/l1ctl_server.h>
+#include <osmocom/core/panic.h>
+}
+
+extern tx_queue_t txq;
+extern cmd_queue_t cmdq_to_phy;
+extern cmdr_queue_t cmdq_from_phy;
+extern std::atomic<bool> g_exit_flag;
+// trxcon C call(back) if
+extern "C" {
+int trxcon_phyif_handle_burst_req(void *phyif, const struct trxcon_phyif_burst_req *br)
+{
+	if (br->burst_len == 0) // dummy/nope
+		return 0;
+	OSMO_ASSERT(br->burst != 0);
+
+	internal_q_tx_buf b(br);
+	if (!g_exit_flag)
+		txq.spsc_push(&b);
+	return 0;
+}
+
+int trxcon_phyif_handle_cmd(void *phyif, const struct trxcon_phyif_cmd *cmd)
+{
+#ifdef TXDEBUG
+	DBGLG() << "TOP C: " << cmd2str(cmd->type) << std::endl;
+#endif
+	if (!g_exit_flag)
+		cmdq_to_phy.spsc_push(cmd);
+	// q for resp polling happens in main loop
+	return 0;
+}
+
+void trxcon_phyif_close(void *phyif)
+{
+}
+
+void trxcon_l1ctl_close(struct trxcon_inst *trxcon)
+{
+	/* Avoid use-after-free: both *fi and *trxcon are children of
+	 * the L2IF (L1CTL connection), so we need to re-parent *fi
+	 * to NULL before calling l1ctl_client_conn_close(). */
+	talloc_steal(NULL, trxcon->fi);
+	l1ctl_client_conn_close((struct l1ctl_client *)trxcon->l2if);
+}
+
+int trxcon_l1ctl_send(struct trxcon_inst *trxcon, struct msgb *msg)
+{
+	struct l1ctl_client *l1c = (struct l1ctl_client *)trxcon->l2if;
+
+	return l1ctl_client_send(l1c, msg);
+}
+}

Transceiver52M/ms/ms_trxcon_if.h

@@ -1,6 +1,6 @@
 #pragma once
 /*
- * (C) 2022 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
  * All Rights Reserved
  *
  * Author: Eric Wild <ewild@sysmocom.de>
@@ -21,5 +21,22 @@
  */
 
 #include "ms.h"
+extern "C" {
+#include <osmocom/bb/trxcon/phyif.h>
+}
 
-void rcv_bursts_test(rx_queue_t *q, unsigned int *tsc, int scale);
+extern struct trxcon_inst *g_trxcon;
+struct internal_q_tx_buf {
+	trxcon_phyif_burst_req r;
+	uint8_t buf[148];
+	internal_q_tx_buf() = default;
+	internal_q_tx_buf(const internal_q_tx_buf &) = delete;
+	internal_q_tx_buf &operator=(const internal_q_tx_buf &) = default;
+	internal_q_tx_buf(const struct trxcon_phyif_burst_req *br) : r(*br)
+	{
+		memcpy(buf, (void *)br->burst, br->burst_len);
+	}
+};
+using tx_queue_t = spsc_cond<8 * 1, internal_q_tx_buf, true, false>;
+using cmd_queue_t = spsc_cond_timeout<8 * 1, trxcon_phyif_cmd, true, false>;
+using cmdr_queue_t = spsc_cond<8 * 1, trxcon_phyif_rsp, false, false>;

Transceiver52M/ms/ms_upper.cpp

@@ -19,6 +19,7 @@
  *
  */
 
+#include <csignal>
 #include "sigProcLib.h"
 #include "ms.h"
 #include <signalVector.h>
@@ -26,64 +27,36 @@
 #include <radioInterface.h>
 #include <grgsm_vitac/grgsm_vitac.h>
 
+// #define TXDEBUG
+
 extern "C" {
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <getopt.h>
-#include <unistd.h>
-#include <signal.h>
-#include <errno.h>
-#include <time.h>
-#include <fenv.h>
 
 #include "sch.h"
 #include "convolve.h"
 #include "convert.h"
 
+#include <osmocom/core/application.h>
+#include <osmocom/gsm/gsm_utils.h>
+
+#include <osmocom/bb/trxcon/trxcon.h>
+#include <osmocom/bb/trxcon/trxcon_fsm.h>
+#include <osmocom/bb/trxcon/l1ctl_server.h>
+
+extern void trxc_log_init(void *tallctx);
 #ifdef LSANDEBUG
 void __lsan_do_recoverable_leak_check();
 #endif
 }
 
+#include "ms_trxcon_if.h"
 #include "ms_upper.h"
-
-namespace trxcon
-{
-extern "C" {
-#include <osmocom/core/fsm.h>
-#include <osmocom/core/msgb.h>
-#include <osmocom/core/talloc.h>
-#include <osmocom/core/signal.h>
-#include <osmocom/core/select.h>
-#include <osmocom/gsm/gsm_utils.h>
-
-#include <osmocom/core/logging.h>
-#include <osmocom/bb/trxcon/logging.h>
-
-#include <osmocom/bb/trxcon/trxcon.h>
-#include <osmocom/bb/trxcon/trxcon_fsm.h>
-#include <osmocom/bb/trxcon/phyif.h>
-#include <osmocom/bb/trxcon/l1ctl_server.h>
-}
-struct trxcon_inst *g_trxcon;
-// trx_instance *trxcon_instance; // local handle
-struct internal_q_tx_buf {
-	trxcon_phyif_burst_req r;
-	uint8_t buf[148];
-};
-using tx_queue_t = spsc_cond<8 * 1, internal_q_tx_buf, true, false>;
-using cmd_queue_t = spsc_cond<8 * 1, trxcon_phyif_cmd, true, false>;
-using cmdr_queue_t = spsc_cond<8 * 1, trxcon_phyif_rsp, false, false>;
-static tx_queue_t txq;
-static cmd_queue_t cmdq_to_phy;
-static cmdr_queue_t cmdq_from_phy;
+#include "threadsched.h"
 
 extern bool trxc_l1ctl_init(void *tallctx);
-
-} // namespace trxcon
-extern "C" void trxc_log_init(void *tallctx);
+struct trxcon_inst *g_trxcon;
+tx_queue_t txq;
+cmd_queue_t cmdq_to_phy;
+cmdr_queue_t cmdq_from_phy;
 
 #ifdef LOG
 #undef LOG
@@ -94,41 +67,62 @@ extern "C" void trxc_log_init(void *tallctx);
 
 std::atomic<bool> g_exit_flag;
 
+void upper_trx::stop_upper_threads()
+{
+	g_exit_flag = true;
+
+	pthread_join(thr_control, NULL);
+	pthread_join(thr_tx, NULL);
+}
+
 void upper_trx::start_threads()
 {
-	thr_control = std::thread([this] {
-		set_name_aff_sched("upper_ctrl", 1, SCHED_RR, sched_get_priority_max(SCHED_RR));
-		while (!g_exit_flag) {
-			driveControl();
-		}
-	});
-	msleep(1);
-	thr_tx = std::thread([this] {
-		set_name_aff_sched("upper_tx", 1, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 1);
-		while (!g_exit_flag) {
-			driveTx();
-		}
-	});
+	DBGLG(...) << "spawning threads.." << std::endl;
 
-	// atomic ensures data is not written to q until loop reads
-	start_lower_ms();
+	thr_control = spawn_worker_thread(
+		sched_params::thread_names::U_CTL,
+		[](void *args) -> void * {
+			upper_trx *t = reinterpret_cast<upper_trx *>(args);
+#ifdef TXDEBUG
+			struct sched_param param;
+			int policy;
+			pthread_getschedparam(pthread_self(), &policy, &param);
+			printf("ID: %lu, CPU: %d policy = %d priority = %d\n", pthread_self(), sched_getcpu(), policy,
+			       param.sched_priority);
+#endif
+			std::cerr << "started U control!" << std::endl;
+			while (!g_exit_flag) {
+				t->driveControl();
+			}
+			std::cerr << "exit U control!" << std::endl;
 
-	set_name_aff_sched("upper_rx", 1, SCHED_FIFO, sched_get_priority_max(SCHED_RR) - 5);
-	while (!g_exit_flag) {
-		// set_upper_ready(true);
-		driveReceiveFIFO();
-		trxcon::osmo_select_main(1);
+			return 0;
+		},
+		this);
+	thr_tx = spawn_worker_thread(
+		sched_params::thread_names::U_TX,
+		[](void *args) -> void * {
+			upper_trx *t = reinterpret_cast<upper_trx *>(args);
+#ifdef TXDEBUG
+			struct sched_param param;
+			int policy;
+			pthread_getschedparam(pthread_self(), &policy, &param);
+			printf("ID: %lu, CPU: %d policy = %d priority = %d\n", pthread_self(), sched_getcpu(), policy,
+			       param.sched_priority);
+#endif
+			std::cerr << "started U tx!" << std::endl;
+			while (!g_exit_flag) {
+				t->driveTx();
+			}
+			std::cerr << "exit U tx!" << std::endl;
 
-		trxcon::trxcon_phyif_rsp r;
-		if (trxcon::cmdq_from_phy.spsc_pop(&r)) {
-			DBGLG() << "HAVE RESP:" << r.type << std::endl;
-			trxcon_phyif_handle_rsp(trxcon::g_trxcon, &r);
-		}
-	}
+			return 0;
+		},
+		this);
 
 #ifdef LSANDEBUG
 	std::thread([this] {
-		set_name_aff_sched("leakcheck", 1, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 10);
+		set_name_aff_sched(sched_params::thread_names::LEAKCHECK);
 
 		while (1) {
 			std::this_thread::sleep_for(std::chrono::seconds{ 5 });
@@ -138,9 +132,23 @@ void upper_trx::start_threads()
 #endif
 }
 
-void upper_trx::start_lower_ms()
+void upper_trx::main_loop()
 {
-	ms_trx::start();
+	set_name_aff_sched(sched_params::thread_names::U_RX);
+	set_upper_ready(true);
+	while (!g_exit_flag) {
+		driveReceiveFIFO();
+		osmo_select_main(1);
+
+		trxcon_phyif_rsp r;
+		if (cmdq_from_phy.spsc_pop(&r)) {
+			DBGLG() << "HAVE RESP:" << r.type << std::endl;
+			trxcon_phyif_handle_rsp(g_trxcon, &r);
+		}
+	}
+	set_upper_ready(false);
+	std::cerr << "exit U rx!" << std::endl;
+	mOn = false;
 }
 
 // signalvector is owning despite claiming not to, but we can pretend, too..
@@ -172,9 +180,9 @@ bool upper_trx::pullRadioVector(GSM::Time &wTime, int &RSSI, int &timingOffset)
 	const auto is_sch = gsm_sch_check_ts(wTime.TN(), wTime.FN());
 	const auto is_fcch = gsm_fcch_check_ts(wTime.TN(), wTime.FN());
 
-	trxcon::trxcon_phyif_rtr_ind i = { static_cast<uint32_t>(wTime.FN()), static_cast<uint8_t>(wTime.TN()) };
-	trxcon::trxcon_phyif_rtr_rsp r = {};
-	trxcon_phyif_handle_rtr_ind(trxcon::g_trxcon, &i, &r);
+	trxcon_phyif_rtr_ind i = { static_cast<uint32_t>(wTime.FN()), static_cast<uint8_t>(wTime.TN()) };
+	trxcon_phyif_rtr_rsp r = {};
+	trxcon_phyif_handle_rtr_ind(g_trxcon, &i, &r);
 	if (!(r.flags & TRXCON_PHYIF_RTR_F_ACTIVE))
 		return false;
 
@@ -191,7 +199,8 @@ bool upper_trx::pullRadioVector(GSM::Time &wTime, int &RSSI, int &timingOffset)
 		return true;
 	}
 
-	convert_and_scale<float, int16_t>(ss, e.burst, ONE_TS_BURST_LEN * 2, 1.f / float(rxFullScale));
+#if 1
+	convert_and_scale(ss, e.burst, ONE_TS_BURST_LEN * 2, 1.f / float(rxFullScale));
 
 	pow = energyDetect(sv, 20 * 4 /*sps*/);
 	if (pow < -1) {
@@ -218,12 +227,48 @@ bool upper_trx::pullRadioVector(GSM::Time &wTime, int &RSSI, int &timingOffset)
 		// fprintf(stderr, "%s %d\n", (is_nb ? "N":"D"), burst_time.FN());
 		// if (is_nb)
 #endif
-		detect_burst(ss, &chan_imp_resp[0], normal_burst_start, demodded_softbits);
+		detect_burst_nb(ss, &chan_imp_resp[0], normal_burst_start, demodded_softbits);
 #ifdef DBGXX
 		// else
 		// 	detect_burst(ss, &chan_imp_resp2[0], dummy_burst_start, outbin);
 #endif
 	}
+#else
+
+	// lower layer sch detection offset, easy to verify by just printing the detected value using both the va+sigproc code.
+	convert_and_scale(ss + 16, e.burst, ONE_TS_BURST_LEN * 2, 15);
+
+	pow = energyDetect(sv, 20 * 4 /*sps*/);
+	if (pow < -1) {
+		LOG(ALERT) << "Received empty burst";
+		return false;
+	}
+
+	avg = sqrt(pow);
+
+	/* Detect normal or RACH bursts */
+	CorrType type = CorrType::TSC;
+	struct estim_burst_params ebp;
+	auto rc = detectAnyBurst(sv, mTSC, 3, 4, type, 48, &ebp);
+	if (rc > 0) {
+		type = (CorrType)rc;
+	}
+
+	if (rc < 0) {
+		std::cerr << "UR : \x1B[31m rx fail \033[0m @ toa:" << ebp.toa << " " << e.gsmts.FN() << ":"
+			  << e.gsmts.TN() << std::endl;
+		return false;
+	}
+	SoftVector *bits = demodAnyBurst(sv, type, 4, &ebp);
+
+	SoftVector::const_iterator burstItr = bits->begin();
+	// invert and fix to +-127 sbits
+	for (int ii = 0; ii < 148; ii++) {
+		demodded_softbits[ii] = *burstItr++ > 0.0f ? -127 : 127;
+	}
+	delete bits;
+
+#endif
 	RSSI = (int)floor(20.0 * log10(rxFullScale / avg));
 	// FIXME: properly handle offset, sch/nb alignment diff? handled by lower anyway...
 	timingOffset = (int)round(0);
@@ -241,40 +286,40 @@ void upper_trx::driveReceiveFIFO()
 		return;
 
 	if (pullRadioVector(burstTime, RSSI, TOA)) {
-		trxcon::trxcon_phyif_burst_ind bi;
+		trxcon_phyif_burst_ind bi;
 		bi.fn = burstTime.FN();
 		bi.tn = burstTime.TN();
 		bi.rssi = RSSI;
 		bi.toa256 = TOA;
 		bi.burst = (sbit_t *)demodded_softbits;
 		bi.burst_len = sizeof(demodded_softbits);
-		trxcon_phyif_handle_burst_ind(trxcon::g_trxcon, &bi);
+		trxcon_phyif_handle_burst_ind(g_trxcon, &bi);
 	}
 
-	struct trxcon::trxcon_phyif_rts_ind rts {
+	burstTime.incTN(2);
+	struct trxcon_phyif_rts_ind rts {
 		static_cast<uint32_t>(burstTime.FN()), static_cast<uint8_t>(burstTime.TN())
 	};
-	trxcon_phyif_handle_rts_ind(trxcon::g_trxcon, &rts);
+	trxcon_phyif_handle_rts_ind(g_trxcon, &rts);
 }
 
 void upper_trx::driveTx()
 {
-	trxcon::internal_q_tx_buf e;
+	internal_q_tx_buf e;
 	static BitVector newBurst(sizeof(e.buf));
-	while (!trxcon::txq.spsc_pop(&e)) {
-		trxcon::txq.spsc_prep_pop();
+	while (!txq.spsc_pop(&e)) {
+		txq.spsc_prep_pop();
 	}
 
 	// ensure our tx cb is tickled and can exit
 	if (g_exit_flag) {
-		blade_sample_type dummy[10] = {};
-		submit_burst_ts(dummy, 10, 1);
+		submit_burst_ts(0, 1337, 1);
 		return;
 	}
 
-	trxcon::internal_q_tx_buf *burst = &e;
+	internal_q_tx_buf *burst = &e;
 
-#ifdef TXDEBUG
+#ifdef TXDEBUG2
 	DBGLG() << "got burst!" << burst->r.fn << ":" << burst->ts << " current: " << timekeeper.gsmtime().FN()
 		<< " dff: " << (int64_t)((int64_t)timekeeper.gsmtime().FN() - (int64_t)burst->r.fn) << std::endl;
 #endif
@@ -292,10 +337,10 @@ void upper_trx::driveTx()
 
 	// float -> int16
 	blade_sample_type burst_buf[txburst->size()];
-	convert_and_scale<int16_t, float>(burst_buf, txburst->begin(), txburst->size() * 2, 1);
-#ifdef TXDEBUG
+	convert_and_scale(burst_buf, txburst->begin(), txburst->size() * 2, 1);
+#ifdef TXDEBUG2
 	auto check = signalVector(txburst->size(), 40);
-	convert_and_scale<float, int16_t, 1>(check.begin(), burst_buf, txburst->size() * 2);
+	convert_and_scale(check.begin(), burst_buf, txburst->size() * 2, 1);
 	estim_burst_params ebp;
 	auto d = detectAnyBurst(check, 2, 4, 4, CorrType::RACH, 40, &ebp);
 	if (d)
@@ -310,42 +355,44 @@ void upper_trx::driveTx()
 }
 
 #ifdef TXDEBUG
-static const char *cmd2str(trxcon::trxcon_phyif_cmd_type c)
+static const char *cmd2str(trxcon_phyif_cmd_type c)
 {
 	switch (c) {
-	case trxcon::TRXCON_PHYIF_CMDT_RESET:
+	case TRXCON_PHYIF_CMDT_RESET:
 		return "TRXCON_PHYIF_CMDT_RESET";
-	case trxcon::TRXCON_PHYIF_CMDT_POWERON:
+	case TRXCON_PHYIF_CMDT_POWERON:
 		return "TRXCON_PHYIF_CMDT_POWERON";
-	case trxcon::TRXCON_PHYIF_CMDT_POWEROFF:
+	case TRXCON_PHYIF_CMDT_POWEROFF:
 		return "TRXCON_PHYIF_CMDT_POWEROFF";
-	case trxcon::TRXCON_PHYIF_CMDT_MEASURE:
+	case TRXCON_PHYIF_CMDT_MEASURE:
 		return "TRXCON_PHYIF_CMDT_MEASURE";
-	case trxcon::TRXCON_PHYIF_CMDT_SETFREQ_H0:
+	case TRXCON_PHYIF_CMDT_SETFREQ_H0:
 		return "TRXCON_PHYIF_CMDT_SETFREQ_H0";
-	case trxcon::TRXCON_PHYIF_CMDT_SETFREQ_H1:
+	case TRXCON_PHYIF_CMDT_SETFREQ_H1:
 		return "TRXCON_PHYIF_CMDT_SETFREQ_H1";
-	case trxcon::TRXCON_PHYIF_CMDT_SETSLOT:
+	case TRXCON_PHYIF_CMDT_SETSLOT:
 		return "TRXCON_PHYIF_CMDT_SETSLOT";
-	case trxcon::TRXCON_PHYIF_CMDT_SETTA:
+	case TRXCON_PHYIF_CMDT_SETTA:
 		return "TRXCON_PHYIF_CMDT_SETTA";
 	default:
 		return "UNKNOWN COMMAND!";
 	}
 }
 
-static void print_cmd(trxcon::trxcon_phyif_cmd_type c)
+static void print_cmd(trxcon_phyif_cmd_type c)
 {
-	DBGLG() << cmd2str(c) << std::endl;
+	DBGLG() << "handling " << cmd2str(c) << std::endl;
 }
 #endif
 
 bool upper_trx::driveControl()
 {
-	trxcon::trxcon_phyif_rsp r;
-	trxcon::trxcon_phyif_cmd cmd;
-	while (!trxcon::cmdq_to_phy.spsc_pop(&cmd)) {
-		trxcon::cmdq_to_phy.spsc_prep_pop();
+	trxcon_phyif_rsp r;
+	trxcon_phyif_cmd cmd;
+	while (!cmdq_to_phy.spsc_pop(&cmd)) {
+		cmdq_to_phy.spsc_prep_pop();
+		if (g_exit_flag)
+			return false;
 	}
 
 	if (g_exit_flag)
@@ -356,103 +403,54 @@ bool upper_trx::driveControl()
 #endif
 
 	switch (cmd.type) {
-	case trxcon::TRXCON_PHYIF_CMDT_RESET:
+	case TRXCON_PHYIF_CMDT_RESET:
 		set_ta(0);
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_POWERON:
-
+	case TRXCON_PHYIF_CMDT_POWERON:
 		if (!mOn) {
-			set_upper_ready(true);
 			mOn = true;
+			start_lower_ms();
 		}
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_POWEROFF:
+	case TRXCON_PHYIF_CMDT_POWEROFF:
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_MEASURE:
-		r.type = trxcon::trxcon_phyif_cmd_type::TRXCON_PHYIF_CMDT_MEASURE;
+	case TRXCON_PHYIF_CMDT_MEASURE:
+		r.type = trxcon_phyif_cmd_type::TRXCON_PHYIF_CMDT_MEASURE;
 		r.param.measure.band_arfcn = cmd.param.measure.band_arfcn;
 		// FIXME: do we want to measure anything, considering the transceiver just syncs by.. syncing?
 		r.param.measure.dbm = -80;
-		tuneRx(trxcon::gsm_arfcn2freq10(cmd.param.measure.band_arfcn, 0) * 1000 * 100);
-		tuneTx(trxcon::gsm_arfcn2freq10(cmd.param.measure.band_arfcn, 1) * 1000 * 100);
-		trxcon::cmdq_from_phy.spsc_push(&r);
+		tuneRx(gsm_arfcn2freq10(cmd.param.measure.band_arfcn, 0) * 1000 * 100);
+		tuneTx(gsm_arfcn2freq10(cmd.param.measure.band_arfcn, 1) * 1000 * 100);
+		cmdq_from_phy.spsc_push(&r);
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_SETFREQ_H0:
-		tuneRx(trxcon::gsm_arfcn2freq10(cmd.param.setfreq_h0.band_arfcn, 0) * 1000 * 100);
-		tuneTx(trxcon::gsm_arfcn2freq10(cmd.param.setfreq_h0.band_arfcn, 1) * 1000 * 100);
+	case TRXCON_PHYIF_CMDT_SETFREQ_H0:
+		tuneRx(gsm_arfcn2freq10(cmd.param.setfreq_h0.band_arfcn, 0) * 1000 * 100);
+		tuneTx(gsm_arfcn2freq10(cmd.param.setfreq_h0.band_arfcn, 1) * 1000 * 100);
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_SETFREQ_H1:
+	case TRXCON_PHYIF_CMDT_SETFREQ_H1:
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_SETSLOT:
+	case TRXCON_PHYIF_CMDT_SETSLOT:
 		break;
-	case trxcon::TRXCON_PHYIF_CMDT_SETTA:
+	case TRXCON_PHYIF_CMDT_SETTA:
 		set_ta(cmd.param.setta.ta);
 		break;
 	}
 	return false;
 }
 
-// trxcon C call(back) if
-extern "C" {
-int trxcon_phyif_handle_burst_req(void *phyif, const struct trxcon::trxcon_phyif_burst_req *br)
-{
-	if (br->burst_len == 0) // dummy/nope
-		return 0;
-	OSMO_ASSERT(br->burst != 0);
-
-	trxcon::internal_q_tx_buf b;
-	b.r = *br;
-	memcpy(b.buf, (void *)br->burst, br->burst_len);
-
-	if (!g_exit_flag)
-		trxcon::txq.spsc_push(&b);
-	return 0;
-}
-
-int trxcon_phyif_handle_cmd(void *phyif, const struct trxcon::trxcon_phyif_cmd *cmd)
-{
-#ifdef TXDEBUG
-	DBGLG() << "TOP C: " << cmd2str(cmd->type) << std::endl;
-#endif
-	if (!g_exit_flag)
-		trxcon::cmdq_to_phy.spsc_push(cmd);
-	// q for resp polling happens in main loop
-	return 0;
-}
-
-void trxcon_phyif_close(void *phyif)
-{
-}
-
-void trxcon_l1ctl_close(struct trxcon::trxcon_inst *trxcon)
-{
-	/* Avoid use-after-free: both *fi and *trxcon are children of
-	 * the L2IF (L1CTL connection), so we need to re-parent *fi
-	 * to NULL before calling l1ctl_client_conn_close(). */
-	talloc_steal(NULL, trxcon->fi);
-	trxcon::l1ctl_client_conn_close((struct trxcon::l1ctl_client *)trxcon->l2if);
-}
-
-int trxcon_l1ctl_send(struct trxcon::trxcon_inst *trxcon, struct trxcon::msgb *msg)
-{
-	struct trxcon::l1ctl_client *l1c = (struct trxcon::l1ctl_client *)trxcon->l2if;
-
-	return trxcon::l1ctl_client_send(l1c, msg);
-}
-}
-
 void sighandler(int sigset)
 {
 	// we might get a sigpipe in case the l1ctl ud socket disconnects because mobile quits
-	if (sigset == SIGPIPE) {
+	if (sigset == SIGPIPE || sigset == SIGINT) {
 		g_exit_flag = true;
 
 		// we know the flag is atomic and it prevents the trxcon cb handlers from writing
 		// to the queues, so submit some trash to unblock the threads & exit
-		trxcon::trxcon_phyif_cmd cmd;
-		trxcon::internal_q_tx_buf b;
-		trxcon::txq.spsc_push(&b);
-		trxcon::cmdq_to_phy.spsc_push(&cmd);
+		trxcon_phyif_cmd cmd = {};
+		internal_q_tx_buf b = {};
+		txq.spsc_push(&b);
+		cmdq_to_phy.spsc_push(&cmd);
+		msleep(200);
 
 		return;
 	}
@@ -462,15 +460,26 @@ int main(int argc, char *argv[])
 {
 	auto tall_trxcon_ctx = talloc_init("trxcon context");
 	signal(SIGPIPE, sighandler);
-	fesetround(FE_TOWARDZERO);
+	signal(SIGINT, sighandler);
 
-	trxcon::msgb_talloc_ctx_init(tall_trxcon_ctx, 0);
+	msgb_talloc_ctx_init(tall_trxcon_ctx, 0);
 	trxc_log_init(tall_trxcon_ctx);
 
-	trxcon::g_trxcon = trxcon::trxcon_inst_alloc(tall_trxcon_ctx, 0, 0);
-	trxcon::g_trxcon->gsmtap = nullptr;
-	trxcon::g_trxcon->phyif = nullptr;
-	trxcon::g_trxcon->phy_quirks.fbsb_extend_fns = 866; // 4 seconds, known to work.
+	/* Configure pretty logging */
+	log_set_print_extended_timestamp(osmo_stderr_target, 1);
+	log_set_print_category_hex(osmo_stderr_target, 0);
+	log_set_print_category(osmo_stderr_target, 1);
+	log_set_print_level(osmo_stderr_target, 1);
+
+	log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_BASENAME);
+	log_set_print_filename_pos(osmo_stderr_target, LOG_FILENAME_POS_LINE_END);
+
+	osmo_fsm_log_timeouts(true);
+
+	g_trxcon = trxcon_inst_alloc(tall_trxcon_ctx, 0);
+	g_trxcon->gsmtap = nullptr;
+	g_trxcon->phyif = nullptr;
+	g_trxcon->phy_quirks.fbsb_extend_fns = 866; // 4 seconds, known to work.
 
 	convolve_init();
 	convert_init();
@@ -482,15 +491,22 @@ int main(int argc, char *argv[])
 	trx->do_auto_gain = true;
 
 	status = trx->init_dev_and_streams();
-	trx->set_name_aff_sched("main", 3, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 5);
+	if (status < 0) {
+		std::cerr << "Error initializing hardware, quitting.." << std::endl;
+		return -1;
+	}
+	set_name_aff_sched(sched_params::thread_names::MAIN);
 
-	if (!trxcon::trxc_l1ctl_init(tall_trxcon_ctx)) {
+	if (!trxc_l1ctl_init(tall_trxcon_ctx)) {
 		std::cerr << "Error initializing l1ctl, quitting.." << std::endl;
 		return -1;
 	}
 
+	// blocking, will return when global exit is requested
 	trx->start_threads();
+	trx->main_loop();
 	trx->stop_threads();
+	trx->stop_upper_threads();
 
 	return status;
 }

Transceiver52M/ms/ms_upper.h

@@ -24,25 +24,25 @@
 #include <arpa/inet.h>
 
 #include "GSMCommon.h"
-#include "radioClock.h"
 #include "ms.h"
 
 class upper_trx : public ms_trx {
-	bool mOn;
+	volatile bool mOn;
 	char demodded_softbits[444];
 
 	// void driveControl();
+	bool pullRadioVector(GSM::Time &wTime, int &RSSI, int &timingOffset);
+
+	pthread_t thr_control, thr_tx;
+
+    public:
+	void start_threads();
+	void main_loop();
+	void stop_upper_threads();
+
 	bool driveControl();
 	void driveReceiveFIFO();
 	void driveTx();
 
-	bool pullRadioVector(GSM::Time &wTime, int &RSSI, int &timingOffset);
-
-	std::thread thr_control, thr_rx, thr_tx;
-
-    public:
-	void start_threads();
-	void start_lower_ms();
-
-	upper_trx(){};
+	upper_trx() : mOn(false){};
 };

Transceiver52M/ms/threadpool.h

@@ -0,0 +1,95 @@
+#pragma once
+/*
+ * (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Eric Wild <ewild@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <atomic>
+#include <vector>
+#include <future>
+#include <mutex>
+#include <queue>
+#include "threadsched.h"
+
+struct single_thread_pool {
+	std::mutex m;
+	std::condition_variable cv;
+	std::atomic<bool> stop_flag;
+	std::atomic<bool> is_ready;
+	std::deque<std::function<void()>> wq;
+	pthread_t worker_thread;
+
+	template <class F>
+	void add_task(F &&f)
+	{
+		std::unique_lock<std::mutex> l(m);
+		wq.emplace_back(std::forward<F>(f));
+		cv.notify_one();
+		return;
+	}
+
+	single_thread_pool() : stop_flag(false), is_ready(false)
+	{
+		worker_thread = spawn_worker_thread(
+			sched_params::thread_names::SCH_SEARCH,
+			[](void *args) -> void * {
+				using thist = decltype(this);
+				thist t = reinterpret_cast<thist>(args);
+				t->thread_loop();
+				return 0;
+			},
+			this);
+	}
+	~single_thread_pool()
+	{
+		stop();
+	}
+
+    private:
+	void stop()
+	{
+		{
+			std::unique_lock<std::mutex> l(m);
+			wq.clear();
+			stop_flag = true;
+			cv.notify_one();
+		}
+		pthread_join(worker_thread, nullptr);
+	}
+
+	void thread_loop()
+	{
+		while (true) {
+			is_ready = true;
+			std::function<void()> f;
+			{
+				std::unique_lock<std::mutex> l(m);
+				if (wq.empty()) {
+					cv.wait(l, [&] { return !wq.empty() || stop_flag; });
+				}
+				if (stop_flag)
+					return;
+				is_ready = false;
+				f = std::move(wq.front());
+				wq.pop_front();
+			}
+			f();
+		}
+	}
+};

Transceiver52M/ms/threadsched.cpp

@@ -0,0 +1,104 @@
+/*
+ * (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Eric Wild <ewild@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <cerrno>
+#include <cstdlib>
+#include <cstring>
+#include <iostream>
+#include <thread>
+
+extern "C" {
+#include <pthread.h>
+}
+
+#include "threadsched.h"
+
+sched_params::target scheduling_target;
+
+void set_sched_target(sched_params::target t)
+{
+	scheduling_target = t;
+}
+
+void set_name_aff_sched(std::thread::native_handle_type h, const char *name, int cpunum, int schedtype, int prio)
+{
+	pthread_setname_np(h, name);
+
+	cpu_set_t cpuset;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpunum, &cpuset);
+
+	if (pthread_setaffinity_np(h, sizeof(cpuset), &cpuset) < 0) {
+		std::cerr << name << " affinity: errreur! " << std::strerror(errno);
+		return exit(0);
+	}
+
+	sched_param sch_params;
+	sch_params.sched_priority = prio;
+	if (pthread_setschedparam(h, schedtype, &sch_params) < 0) {
+		std::cerr << name << " sched: errreur! " << std::strerror(errno);
+		return exit(0);
+	}
+}
+
+static pthread_t do_spawn_thr(const char *name, int cpunum, int schedtype, int prio, worker_func_sig fun, void *arg)
+{
+	pthread_t thread;
+
+	pthread_attr_t attr;
+	pthread_attr_init(&attr);
+
+	sched_param sch_params;
+	sch_params.sched_priority = prio;
+	cpu_set_t cpuset;
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpunum, &cpuset);
+	auto a = pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
+	a |= pthread_attr_setschedpolicy(&attr, schedtype);
+	a |= pthread_attr_setschedparam(&attr, &sch_params);
+	a |= pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
+	if (a)
+		std::cerr << "thread arg rc:" << a << std::endl;
+	pthread_create(&thread, &attr, fun, arg);
+	pthread_setname_np(thread, name);
+	pthread_attr_destroy(&attr);
+	return thread;
+}
+
+void set_name_aff_sched(std::thread::native_handle_type h, sched_params::thread_names name)
+{
+	auto tgt = schdp[scheduling_target][name];
+	// std::cerr << "scheduling for: " << tgt.name << ":" << tgt.core << std::endl;
+	set_name_aff_sched(h, tgt.name, tgt.core, tgt.schedtype, tgt.prio);
+}
+
+void set_name_aff_sched(sched_params::thread_names name)
+{
+	set_name_aff_sched(pthread_self(), name);
+}
+
+pthread_t spawn_worker_thread(sched_params::thread_names name, worker_func_sig fun, void *arg)
+{
+	auto tgt = schdp[scheduling_target][name];
+	// std::cerr << "scheduling for: " << tgt.name << ":" << tgt.core << " prio:" << tgt.prio << std::endl;
+	return do_spawn_thr(tgt.name, tgt.core, tgt.schedtype, tgt.prio, fun, arg);
+}

Transceiver52M/ms/threadsched.h

@@ -0,0 +1,68 @@
+#pragma once
+/*
+ * (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Eric Wild <ewild@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+extern "C" {
+#include <pthread.h>
+#include <sched.h>
+}
+
+static struct sched_params {
+	enum thread_names { U_CTL = 0, U_RX, U_TX, SCH_SEARCH, MAIN, LEAKCHECK, RXRUN, TXRUN, _THRD_NAME_COUNT };
+	enum target { ODROID = 0, PI4 };
+	const char *name;
+	int core;
+	int schedtype;
+	int prio;
+} schdp[][sched_params::_THRD_NAME_COUNT]{
+	{
+		{ "upper_ctrl", 2, SCHED_RR, sched_get_priority_max(SCHED_RR) },
+		{ "upper_rx", 2, SCHED_RR, sched_get_priority_max(SCHED_RR) - 5 },
+		{ "upper_tx", 2, SCHED_RR, sched_get_priority_max(SCHED_RR) - 1 },
+
+		{ "sch_search", 3, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 5 },
+		{ "main", 3, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 5 },
+		{ "leakcheck", 3, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 10 },
+
+		{ "rxrun", 4, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 2 },
+		{ "txrun", 5, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 1 },
+	},
+	{
+		{ "upper_ctrl", 1, SCHED_RR, sched_get_priority_max(SCHED_RR) },
+		{ "upper_rx", 1, SCHED_RR, sched_get_priority_max(SCHED_RR) - 5 },
+		{ "upper_tx", 1, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 1 },
+
+		{ "sch_search", 1, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 5 },
+		{ "main", 3, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 5 },
+		{ "leakcheck", 1, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 10 },
+
+		{ "rxrun", 2, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 2 },
+		{ "txrun", 3, SCHED_FIFO, sched_get_priority_max(SCHED_FIFO) - 1 },
+	},
+};
+
+void set_sched_target(sched_params::target t);
+
+using worker_func_sig = void *(*)(void *);
+
+void set_name_aff_sched(sched_params::thread_names name);
+
+pthread_t spawn_worker_thread(sched_params::thread_names name, worker_func_sig fun, void *arg);

Transceiver52M/ms/uhd_specific.h

@@ -65,7 +65,8 @@ struct uhd_buf_wrap {
 using dev_buf_t = uhd_buf_wrap;
 using bh_fn_t = std::function<int(dev_buf_t *)>;
 
-template <typename T> struct uhd_hw {
+template <typename T>
+struct uhd_hw {
 	uhd::usrp::multi_usrp::sptr dev;
 	uhd::rx_streamer::sptr rx_stream;
 	uhd::tx_streamer::sptr tx_stream;
@@ -76,13 +77,14 @@ template <typename T> struct uhd_hw {
 	const unsigned int rxFullScale, txFullScale;
 	const int rxtxdelay;
 	float rxgain, txgain;
-	static std::atomic<bool> stop_me_flag;
+	static std::atomic<bool> stop_lower_threads_flag;
+	double rxfreq_cache, txfreq_cache;
 
 	virtual ~uhd_hw()
 	{
 		delete[] one_pkt_buf;
 	}
-	uhd_hw() : rxFullScale(32767), txFullScale(32767), rxtxdelay(-67)
+	uhd_hw() : rxFullScale(32767), txFullScale(32767 * 0.3), rxtxdelay(-67), rxfreq_cache(0), txfreq_cache(0)
 	{
 	}
 
@@ -92,15 +94,21 @@ template <typename T> struct uhd_hw {
 
 	bool tuneTx(double freq, size_t chan = 0)
 	{
+		if (txfreq_cache == freq)
+			return true;
 		msleep(25);
 		dev->set_tx_freq(freq, chan);
+		txfreq_cache = freq;
 		msleep(25);
 		return true;
 	};
 	bool tuneRx(double freq, size_t chan = 0)
 	{
+		if (rxfreq_cache == freq)
+			return true;
 		msleep(25);
 		dev->set_rx_freq(freq, chan);
+		rxfreq_cache = freq;
 		msleep(25);
 		return true;
 	};
@@ -133,6 +141,7 @@ template <typename T> struct uhd_hw {
 	int init_device(bh_fn_t rxh, bh_fn_t txh)
 	{
 		auto const lock_delay_ms = 500;
+		auto clock_lock_attempts = 15; // x lock_delay_ms
 		auto const mcr = 26e6;
 		auto const rate = (1625e3 / 6) * 4;
 		auto const ref = "external";
@@ -157,8 +166,18 @@ template <typename T> struct uhd_hw {
 		dev->set_tx_bandwidth(bw, channel);
 
 		while (!(dev->get_rx_sensor("lo_locked", channel).to_bool() &&
-			 dev->get_mboard_sensor("ref_locked").to_bool()))
+			 dev->get_mboard_sensor("ref_locked").to_bool()) &&
+		       clock_lock_attempts > 0) {
+			std::cerr << "clock source lock attempts remaining: " << clock_lock_attempts << ".."
+				  << std::endl;
 			std::this_thread::sleep_for(std::chrono::milliseconds(lock_delay_ms));
+			clock_lock_attempts--;
+		}
+
+		if (clock_lock_attempts <= 0) {
+			std::cerr << "Error locking clock, gpsdo missing? quitting.." << std::endl;
+			return -1;
+		}
 
 		uhd::stream_args_t stream_args("sc16", "sc16");
 		rx_stream = dev->get_rx_stream(stream_args);
@@ -173,6 +192,11 @@ template <typename T> struct uhd_hw {
 		return 0;
 	}
 
+	void actually_enable_streams()
+	{
+		// nop: stream cmd in handler
+	}
+
 	void *rx_cb(bh_fn_t burst_handler)
 	{
 		void *ret = nullptr;
@@ -207,24 +231,29 @@ template <typename T> struct uhd_hw {
 
 	auto get_rx_burst_handler_fn(bh_fn_t burst_handler)
 	{
-		auto fn = [this, burst_handler] {
+		// C cb -> ghetto closure capture, which is fine, the args never change.
+		static auto rx_burst_cap_this = this;
+		static auto rx_burst_cap_bh = burst_handler;
+		auto fn = [](void *args) -> void * {
 			pthread_setname_np(pthread_self(), "rxrun");
 
 			uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
 			stream_cmd.stream_now = true;
 			stream_cmd.time_spec = uhd::time_spec_t();
-			rx_stream->issue_stream_cmd(stream_cmd);
+			rx_burst_cap_this->rx_stream->issue_stream_cmd(stream_cmd);
 
-			while (!stop_me_flag) {
-				rx_cb(burst_handler);
+			while (!rx_burst_cap_this->stop_lower_threads_flag) {
+				rx_burst_cap_this->rx_cb(rx_burst_cap_bh);
 			}
+			return 0;
 		};
 		return fn;
 	}
 	auto get_tx_burst_handler_fn(bh_fn_t burst_handler)
 	{
-		auto fn = [] {
+		auto fn = [](void *args) -> void * {
 			// dummy
+			return 0;
 		};
 		return fn;
 	}

Transceiver52M/osmo-trx.cpp

@@ -77,6 +77,24 @@ static struct ctrl_handle *g_ctrlh;
 static RadioDevice *usrp;
 static RadioInterface *radio;
 
+/* adjusts read timestamp offset to make the viterbi equalizer happy by including the start tail bits */
+template <typename B>
+class rif_va_wrapper : public B {
+	bool use_va;
+
+    public:
+	template <typename... Args>
+	rif_va_wrapper(bool use_va, Args &&...args) : B(std::forward<Args>(args)...), use_va(use_va)
+	{
+	}
+	bool start() override
+	{
+		auto rv = B::start();
+		B::readTimestamp -= use_va ? 20 : 0;
+		return rv;
+	};
+};
+
 /* Create radio interface
  *     The interface consists of sample rate changes, frequency shifts,
  *     channel multiplexing, and other conversions. The transceiver core
@@ -91,17 +109,17 @@ RadioInterface *makeRadioInterface(struct trx_ctx *trx,
 
 	switch (type) {
 	case RadioDevice::NORMAL:
-		radio = new RadioInterface(usrp, trx->cfg.tx_sps,
-					   trx->cfg.rx_sps, trx->cfg.num_chans);
+		radio = new rif_va_wrapper<RadioInterface>(trx->cfg.use_va, usrp, trx->cfg.tx_sps, trx->cfg.rx_sps,
+							   trx->cfg.num_chans);
 		break;
 	case RadioDevice::RESAMP_64M:
 	case RadioDevice::RESAMP_100M:
-		radio = new RadioInterfaceResamp(usrp, trx->cfg.tx_sps,
-						 trx->cfg.rx_sps);
+		radio = new rif_va_wrapper<RadioInterfaceResamp>(trx->cfg.use_va, usrp, trx->cfg.tx_sps,
+								 trx->cfg.rx_sps);
 		break;
 	case RadioDevice::MULTI_ARFCN:
-		radio = new RadioInterfaceMulti(usrp, trx->cfg.tx_sps,
-						trx->cfg.rx_sps, trx->cfg.num_chans);
+		radio = new rif_va_wrapper<RadioInterfaceMulti>(trx->cfg.use_va, usrp, trx->cfg.tx_sps, trx->cfg.rx_sps,
+								trx->cfg.num_chans);
 		break;
 	default:
 		LOG(ALERT) << "Unsupported radio interface configuration";
@@ -465,6 +483,12 @@ int trx_validate_config(struct trx_ctx *trx)
 		return -1;
 	}
 
+	if (trx->cfg.use_va &&
+	    (trx->cfg.egprs || trx->cfg.multi_arfcn || trx->cfg.tx_sps != 4 || trx->cfg.rx_sps != 4)) {
+		LOG(ERROR) << "Viterbi equalizer only works for gmsk with 4 tx/rx samples per symbol!";
+		return -1;
+	}
+
 	return 0;
 }
 
@@ -571,24 +595,14 @@ static void trx_stop()
 static int trx_start(struct trx_ctx *trx)
 {
 	int type, chans;
-	unsigned int i;
-	std::vector<std::string> rx_paths, tx_paths;
 	RadioDevice::InterfaceType iface = RadioDevice::NORMAL;
 
 	/* Create the low level device object */
 	if (trx->cfg.multi_arfcn)
 		iface = RadioDevice::MULTI_ARFCN;
 
-	/* Generate vector of rx/tx_path: */
-	for (i = 0; i < trx->cfg.num_chans; i++) {
-		rx_paths.push_back(charp2str(trx->cfg.chans[i].rx_path));
-		tx_paths.push_back(charp2str(trx->cfg.chans[i].tx_path));
-	}
-
-	usrp = RadioDevice::make(trx->cfg.tx_sps, trx->cfg.rx_sps, iface,
-				 trx->cfg.num_chans, trx->cfg.offset,
-				 tx_paths, rx_paths);
-	type = usrp->open(charp2str(trx->cfg.dev_args), trx->cfg.clock_ref, trx->cfg.swap_channels);
+	usrp = RadioDevice::make(iface, &trx->cfg);
+	type = usrp->open();
 	if (type < 0) {
 		LOG(ALERT) << "Failed to create radio device" << std::endl;
 		goto shutdown;
@@ -631,6 +645,7 @@ int main(int argc, char *argv[])
 
 	osmo_init_logging2(tall_trx_ctx, &log_info);
 	log_enable_multithread();
+	log_cache_enable();
 	osmo_stats_init(tall_trx_ctx);
 	vty_init(&g_vty_info);
 	logging_vty_add_cmds();
@@ -651,7 +666,7 @@ int main(int argc, char *argv[])
 		exit(2);
 	}
 
-	rc = telnet_init_dynif(tall_trx_ctx, NULL, vty_get_bind_addr(), OSMO_VTY_PORT_TRX);
+	rc = telnet_init_default(tall_trx_ctx, NULL, OSMO_VTY_PORT_TRX);
 	if (rc < 0)
 		exit(1);
 

Transceiver52M/proto_trxd.h

@@ -48,9 +48,8 @@ struct trxd_hdr_common {
 		reserved:1,
 		version:4;
 #elif OSMO_IS_BIG_ENDIAN
-	uint8_t version:4,
-		reserved:1,
-		tn:3;
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */
+	uint8_t version:4, reserved:1, tn:3;
 #endif
 	uint32_t fn; /* big endian */
 } __attribute__ ((packed));
@@ -86,9 +85,8 @@ struct trxd_hdr_v1_specific {
 		modulation:4,
 		idle:1;
 #elif OSMO_IS_BIG_ENDIAN
-	uint8_t idle:1,
-		modulation:4,
-		tsc:3;
+/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */
+	uint8_t idle:1, modulation:4, tsc:3;
 #endif
 	int16_t ci;  /* big endian, in centiBels */
 } __attribute__ ((packed));

Transceiver52M/radioInterface.h

@@ -75,7 +75,7 @@ private:
 public:
 
   /** start the interface */
-  bool start();
+  virtual bool start();
   bool stop();
 
   /** initialization */
@@ -151,7 +151,7 @@ private:
 
 public:
   RadioInterfaceResamp(RadioDevice* wDevice, size_t tx_sps, size_t rx_sps);
-  ~RadioInterfaceResamp();
+  virtual ~RadioInterfaceResamp();
 
   bool init(int type);
   void close();
@@ -184,7 +184,7 @@ private:
 public:
   RadioInterfaceMulti(RadioDevice* radio, size_t tx_sps,
                       size_t rx_sps, size_t chans = 1);
-  ~RadioInterfaceMulti();
+  virtual ~RadioInterfaceMulti();
 
   bool init(int type);
   void close();

Transceiver52M/radioInterfaceMulti.cpp

@@ -153,8 +153,6 @@ bool RadioInterfaceMulti::init(int type)
 		return false;
 	}
 
-	close();
-
 	convertSendBuffer.resize(1);
 	convertRecvBuffer.resize(1);
 

Transceiver52M/radioInterfaceResamp.cpp

@@ -98,8 +98,6 @@ bool RadioInterfaceResamp::init(int type)
 {
 	float cutoff = 1.0f;
 
-	close();
-
 	switch (type) {
 	case RadioDevice::RESAMP_64M:
 		resamp_inrate = RESAMP_64M_INRATE;

Transceiver52M/sigProcLib.cpp

@@ -129,6 +129,8 @@ struct PulseSequence {
 static CorrelationSequence *gMidambles[] = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
 static CorrelationSequence *gEdgeMidambles[] = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
 static CorrelationSequence *gRACHSequences[] = {NULL,NULL,NULL};
+static CorrelationSequence *gSCHSequence = NULL;
+static CorrelationSequence *gDummySequence = NULL;
 static PulseSequence *GSMPulse1 = NULL;
 static PulseSequence *GSMPulse4 = NULL;
 
@@ -151,6 +153,12 @@ void sigProcLibDestroy()
     gRACHSequences[i] = NULL;
   }
 
+  delete gSCHSequence;
+  gSCHSequence = NULL;
+
+  delete gDummySequence;
+  gDummySequence = NULL;
+
   delete GMSKRotation1;
   delete GMSKReverseRotation1;
   delete GMSKRotation4;
@@ -315,6 +323,7 @@ static signalVector *convolve(const signalVector *x, const signalVector *h,
     append = true;
     break;
   case CUSTOM:
+  // FIXME: x->getstart?
     if (start < h->size() - 1) {
       head = h->size() - start;
       append = true;
@@ -1289,6 +1298,77 @@ release:
   return status;
 }
 
+static bool generateDummyMidamble(int sps)
+{
+  bool status = true;
+  float toa;
+  complex *data = NULL;
+  signalVector *autocorr = NULL, *midamble = NULL;
+  signalVector *midMidamble = NULL, *_midMidamble = NULL;
+
+  delete gDummySequence;
+
+  /* Use middle 16 bits of each TSC. Correlation sequence is not pulse shaped */
+  midMidamble = modulateBurst(gDummyBurstTSC.segment(5,16), 0, sps, true);
+  if (!midMidamble)
+    return false;
+
+  /* Simulated receive sequence is pulse shaped */
+  midamble = modulateBurst(gDummyBurstTSC, 0, sps, false);
+  if (!midamble) {
+    status = false;
+    goto release;
+  }
+
+  // NOTE: Because ideal TSC 16-bit midamble is 66 symbols into burst,
+  //       the ideal TSC has an + 180 degree phase shift,
+  //       due to the pi/2 frequency shift, that
+  //       needs to be accounted for.
+  //       26-midamble is 61 symbols into burst, has +90 degree phase shift.
+  scaleVector(*midMidamble, complex(-1.0, 0.0));
+  scaleVector(*midamble, complex(0.0, 1.0));
+
+  conjugateVector(*midMidamble);
+
+  /* For SSE alignment, reallocate the midamble sequence on 16-byte boundary */
+  data = (complex *) convolve_h_alloc(midMidamble->size());
+  _midMidamble = new signalVector(data, 0, midMidamble->size(), convolve_h_alloc, free);
+  _midMidamble->setAligned(true);
+  midMidamble->copyTo(*_midMidamble);
+
+  autocorr = convolve(midamble, _midMidamble, NULL, NO_DELAY);
+  if (!autocorr) {
+    status = false;
+    goto release;
+  }
+
+  gDummySequence = new CorrelationSequence;
+  gDummySequence->sequence = _midMidamble;
+  gDummySequence->gain = peakDetect(*autocorr, &toa, NULL);
+
+  /* For 1 sps only
+   *     (Half of correlation length - 1) + midpoint of pulse shape + remainder
+   *     13.5 = (16 / 2 - 1) + 1.5 + (26 - 10) / 2
+   */
+  if (sps == 1)
+    gDummySequence->toa = toa - 13.5;
+  else
+    gDummySequence->toa = 0;
+
+release:
+  delete autocorr;
+  delete midamble;
+  delete midMidamble;
+
+  if (!status) {
+    delete _midMidamble;
+    free(data);
+    gDummySequence = NULL;
+  }
+
+  return status;
+}
+
 static CorrelationSequence *generateEdgeMidamble(int tsc)
 {
   complex *data = NULL;
@@ -1384,6 +1464,69 @@ release:
   return status;
 }
 
+bool generateSCHSequence(int sps)
+{
+  bool status = true;
+  float toa;
+  complex *data = NULL;
+  signalVector *autocorr = NULL;
+  signalVector *seq0 = NULL, *seq1 = NULL, *_seq1 = NULL;
+
+  delete gSCHSequence;
+
+  seq0 = modulateBurst(gSCHSynchSequence, 0, sps, false);
+  if (!seq0)
+    return false;
+
+  seq1 = modulateBurst(gSCHSynchSequence, 0, sps, true);
+  if (!seq1) {
+    status = false;
+    goto release;
+  }
+
+  conjugateVector(*seq1);
+
+  /* For SSE alignment, reallocate the midamble sequence on 16-byte boundary */
+  data = (complex *) convolve_h_alloc(seq1->size());
+  _seq1 = new signalVector(data, 0, seq1->size(), convolve_h_alloc, free);
+  _seq1->setAligned(true);
+  seq1->copyTo(*_seq1);
+
+  autocorr = convolve(seq0, _seq1, autocorr, NO_DELAY);
+  if (!autocorr) {
+    status = false;
+    goto release;
+  }
+
+  gSCHSequence = new CorrelationSequence;
+  gSCHSequence->sequence = _seq1;
+  gSCHSequence->buffer = data;
+  gSCHSequence->gain = peakDetect(*autocorr, &toa, NULL);
+
+  /* For 1 sps only
+   *     (Half of correlation length - 1) + midpoint of pulse shaping filer
+   *     20.5 = (64 / 2 - 1) + 1.5
+   */
+  if (sps == 1)
+    gSCHSequence->toa = toa - 32.5;
+  else
+    gSCHSequence->toa = 0.0;
+
+release:
+  delete autocorr;
+  delete seq0;
+  delete seq1;
+
+  if (!status) {
+    delete _seq1;
+    free(data);
+    gSCHSequence = NULL;
+  }
+
+  return status;
+}
+
+
 /*
  * Peak-to-average computation +/- range from peak in symbols
  */
@@ -1441,14 +1584,15 @@ float energyDetect(const signalVector &rxBurst, unsigned windowLength)
   return energy/windowLength;
 }
 
-static signalVector *downsampleBurst(const signalVector &burst)
+static signalVector *downsampleBurst(const signalVector &burst, int in_len = DOWNSAMPLE_IN_LEN,
+				     int out_len = DOWNSAMPLE_OUT_LEN)
 {
-  signalVector in(DOWNSAMPLE_IN_LEN, dnsampler->len());
-  signalVector *out = new signalVector(DOWNSAMPLE_OUT_LEN);
-  burst.copyToSegment(in, 0, DOWNSAMPLE_IN_LEN);
+  signalVector in(in_len, dnsampler->len());
+  // gSCHSequence->sequence->size(), ensure next conv has no realloc
+  signalVector *out = new signalVector(out_len, 64);
+  burst.copyToSegment(in, 0, in_len);
 
-  if (dnsampler->rotate((float *) in.begin(), DOWNSAMPLE_IN_LEN,
-                        (float *) out->begin(), DOWNSAMPLE_OUT_LEN) < 0) {
+  if (dnsampler->rotate((float *)in.begin(), in_len, (float *)out->begin(), out_len) < 0) {
     delete out;
     out = NULL;
   }
@@ -1469,6 +1613,12 @@ static float computeCI(const signalVector *burst, const CorrelationSequence *syn
   /* Integer position where the sequence starts */
   const int ps = start + 1 - N + (int)roundf(toa);
 
+  if(ps < 0) // might be -22 for toa 40 with N=64, if off by a lot during sch ms sync
+    return 0;
+
+  if (ps + N > (int)burst->size())
+	  return 0;
+
   /* Estimate Signal power */
   S = 0.0f;
   for (int i=0, j=ps; i<(int)N; i++,j++)
@@ -1652,6 +1802,80 @@ static int detectRACHBurst(const signalVector &burst, float threshold, int sps,
   return rc;
 }
 
+int detectSCHBurst(signalVector &burst,
+		    float thresh,
+		    int sps,
+        sch_detect_type state, struct estim_burst_params *ebp)
+{
+  int rc, start, target, head, tail, len;
+  complex _amp;
+  CorrelationSequence *sync;
+
+  if ((sps != 1) && (sps != 4))
+    return -1;
+
+  target = 3 + 39 + 64;
+
+  switch (state) {
+  case sch_detect_type::SCH_DETECT_NARROW:
+    head = 4;
+    tail = 4;
+    break;
+  case sch_detect_type::SCH_DETECT_BUFFER:
+	  target = 1;
+	  head = 0;
+	  tail = (12 * 8 * 625) / 4; // 12 frames, downsampled /4 to 1 sps
+	  break;
+  case sch_detect_type::SCH_DETECT_FULL:
+  default:
+    head = target - 1;
+    tail = 39 + 3 + 9;
+    break;
+  }
+
+  start = (target - head) * 1 - 1;
+  len = (head + tail) * 1;
+  sync = gSCHSequence;
+  signalVector corr(len);
+
+  signalVector *dec = downsampleBurst(burst, len * 4, len);
+  rc = detectBurst(*dec, corr, sync, thresh, 1, start, len, ebp);
+  delete dec;
+
+  if (rc < 0) {
+    return -1;
+  } else if (!rc) {
+      ebp->amp = 0.0f;
+      ebp->toa = 0.0f;
+    return 0;
+  }
+
+  if (state == sch_detect_type::SCH_DETECT_BUFFER)
+	  ebp->toa = ebp->toa - (3 + 39 + 64);
+  else {
+	  /* Subtract forward search bits from delay */
+	  ebp->toa = ebp->toa - head;
+  }
+
+  return rc;
+}
+
+static int detectDummyBurst(const signalVector &burst, float threshold,
+                               int sps, unsigned max_toa, struct estim_burst_params *ebp)
+{
+  int rc, target, head, tail;
+  CorrelationSequence *sync;
+
+  target = 3 + 58 + 16 + 5;
+  head = 10;
+  tail = 6 + max_toa;
+  sync = gDummySequence;
+
+  ebp->tsc = 0;
+  rc = detectGeneralBurst(burst, threshold, sps, target, head, tail, sync, ebp);
+  return rc;
+}
+
 /*
  * Normal burst detection
  *
@@ -1670,7 +1894,7 @@ static int analyzeTrafficBurst(const signalVector &burst, unsigned tsc, float th
     return -SIGERR_UNSUPPORTED;
 
   target = 3 + 58 + 16 + 5;
-  head = 6;
+  head = 10;
   tail = 6 + max_toa;
   sync = gMidambles[tsc];
 
@@ -1719,6 +1943,9 @@ int detectAnyBurst(const signalVector &burst, unsigned tsc, float threshold,
   case RACH:
     rc = detectRACHBurst(burst, threshold, sps, max_toa, type == EXT_RACH, ebp);
     break;
+  case IDLE:
+    rc = detectDummyBurst(burst, threshold, sps, max_toa, ebp);
+    break;
   default:
     LOG(ERR) << "Invalid correlation type";
   }
@@ -1921,6 +2148,9 @@ bool sigProcLibSetup()
   generateRACHSequence(&gRACHSequences[1], gRACHSynchSequenceTS1, 1);
   generateRACHSequence(&gRACHSequences[2], gRACHSynchSequenceTS2, 1);
 
+  generateSCHSequence(1);
+  generateDummyMidamble(1);
+
   for (int tsc = 0; tsc < 8; tsc++) {
     generateMidamble(1, tsc);
     gEdgeMidambles[tsc] = generateEdgeMidamble(tsc);

Transceiver52M/sigProcLib.h

@@ -31,6 +31,7 @@ enum CorrType{
   TSC,         ///< timeslot should contain a normal burst
   EXT_RACH,    ///< timeslot should contain an extended access burst
   RACH,        ///< timeslot should contain an access burst
+  SCH,
   EDGE,        ///< timeslot should contain an EDGE burst
   IDLE         ///< timeslot is an idle (or dummy) burst
 };
@@ -93,6 +94,8 @@ signalVector *generateDummyBurst(int sps, int tn);
 void scaleVector(signalVector &x,
                  complex scale);
 
+signalVector *delayVector(const signalVector *in, signalVector *out, float delay);
+
 /**
         Rough energy estimator.
         @param rxBurst A GSM burst.
@@ -133,6 +136,17 @@ int detectAnyBurst(const signalVector &burst,
                    unsigned max_toa,
                    struct estim_burst_params *ebp);
 
+enum class sch_detect_type {
+	SCH_DETECT_FULL,
+	SCH_DETECT_NARROW,
+	SCH_DETECT_BUFFER,
+};
+
+int detectSCHBurst(signalVector &rxBurst,
+                    float detectThreshold,
+                    int sps,
+                    sch_detect_type state, struct estim_burst_params *ebp);
+
 /** Demodulate burst basde on type and output soft bits */
 SoftVector *demodAnyBurst(const signalVector &burst, CorrType type,
                           int sps, struct estim_burst_params *ebp);

configure.ac

@@ -82,10 +82,10 @@ AC_TYPE_SIZE_T
 AC_HEADER_TIME
 AC_C_BIGENDIAN
 
-PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.6.0)
-PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.6.0)
-PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 1.6.0)
-PKG_CHECK_MODULES(LIBOSMOCODING, libosmocoding >= 1.6.0)
+PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.10.0)
+PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.10.0)
+PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 1.10.0)
+PKG_CHECK_MODULES(LIBOSMOCODING, libosmocoding >= 1.10.0)
 
 AC_ARG_ENABLE(sanitize,
 	[AS_HELP_STRING(
@@ -212,7 +212,12 @@ AS_IF([test "x$with_bladerf" = "xyes"], [
 AC_MSG_CHECKING([whether to enable building MS TRX])
 AS_IF([test "x$with_mstrx" = "xyes"], [
     AC_CONFIG_SUBDIRS([osmocom-bb/src/host/trxcon])
-    AC_SUBST(LIBTRXCON_DIR, "osmocom-bb/src/host/trxcon")
+    LIBTRXCON_DIR="osmocom-bb/src/host/trxcon"
+    if ! test -d "$srcdir/$LIBTRXCON_DIR"; then
+        AC_MSG_RESULT([no])
+        AC_MSG_ERROR([$LIBTRXCON_DIR does not exist])
+    fi
+    AC_SUBST(LIBTRXCON_DIR)
     AC_MSG_RESULT([yes])
 ], [
     # Despite LIBTRXCON_DIR is added to SUBDIRS conditionally,
@@ -235,7 +240,6 @@ AS_IF([test "x$with_sse" != "xno"], [
     AM_CONDITIONAL(HAVE_SSE4_1, false)
 ])
 
-dnl Check if the compiler supports specified GCC's built-in function
 AC_DEFUN([CHECK_BUILTIN_SUPPORT], [
   AC_CACHE_CHECK(
     [whether ${CC} has $1 built-in],
@@ -369,11 +373,11 @@ AC_CONFIG_FILES([\
     tests/CommonLibs/Makefile \
     tests/Transceiver52M/Makefile \
     utils/Makefile \
+    utils/va-test/Makefile \
     doc/Makefile \
     doc/examples/Makefile \
     contrib/Makefile \
     contrib/systemd/Makefile \
     doc/manuals/Makefile \
-    contrib/osmo-trx.spec \
 ])
 AC_OUTPUT

contrib/jenkins.sh

@@ -9,60 +9,19 @@
 #
 set -ex
 
-substr() { [ -z "${2##*$1*}" ]; }
-
-#apt-get install qemu qemu-user-static qemu-system-arm debootstrap fakeroot proot
-mychroot_nocwd() {
-        # LC_ALL + LANGUAGE set to avoid lots of print errors due to locale not being set inside container
-        # PATH is needed to be able to reach binaries like ldconfig without logging in to root, which adds the paths to PATH.
-        # PROOT_NO_SECCOMP is required due to proot bug #106
-        LC_ALL=C LANGUAGE=C PATH="$PATH:/usr/sbin:/sbin" PROOT_NO_SECCOMP=1 proot -r "$ROOTFS" -w / -b /proc --root-id -q qemu-arm-static "$@"
-}
-
-mychroot() {
-        mychroot_nocwd -w / "$@"
-}
-
-if [ -z "${INSIDE_CHROOT}" ]; then
-
-        # Only use ARM chroot if host is not ARM and the target is ARM:
-        if ! $(substr "arm" "$(uname -m)") && [ "x${INSTR}" = "x--with-neon" -o "x${INSTR}" = "x--with-neon-vfpv4" ]; then
-
-                OSMOTRX_DIR="$PWD" # we assume we are called as contrib/jenkins.sh
-                ROOTFS_PREFIX="${ROOTFS_PREFIX:-$HOME}"
-                ROOTFS="${ROOTFS_PREFIX}/qemu-img"
-                mkdir -p "${ROOTFS_PREFIX}"
-
-                # Prepare chroot:
-                if [ ! -d "$ROOTFS" ]; then
-                        mkdir -p "$ROOTFS"
-                        if [ "x${USE_DEBOOTSTRAP}" = "x1" ]; then
-                                fakeroot qemu-debootstrap --foreign --include="linux-image-armmp-lpae" --arch=armhf stretch "$ROOTFS" http://ftp.de.debian.org/debian/
-                                # Hack to avoid debootstrap trying to mount /proc, as it will fail with "no permissions" and anyway proot takes care of it:
-                                sed -i "s/setup_proc//g" "$ROOTFS/debootstrap/suite-script"
-                                mychroot /debootstrap/debootstrap --second-stage --verbose http://ftp.de.debian.org/debian/
-                        else
-                                YESTERDAY=$(python -c 'import datetime ; print((datetime.datetime.now() - datetime.timedelta(days=1)).strftime("%Y%m%d"))')
-                                wget -nc -q "https://uk.images.linuxcontainers.org/images/debian/stretch/armhf/default/${YESTERDAY}_22:42/rootfs.tar.xz"
-                                tar -xf rootfs.tar.xz -C "$ROOTFS/" || true
-                                echo "nameserver 8.8.8.8" > "$ROOTFS/etc/resolv.conf"
-                        fi
-                        mychroot -b /dev apt-get update
-                        mychroot apt-get -y install build-essential dh-autoreconf pkg-config libuhd-dev libusb-1.0-0-dev libusb-dev git libtalloc-dev libgnutls28-dev stow
-                fi
-                # Run jenkins.sh inside the chroot:
-                INSIDE_CHROOT=1 mychroot_nocwd \
-                 -w /osmo-trx \
-                 -b "$OSMOTRX_DIR:/osmo-trx" \
-                 -b "$(which osmo-clean-workspace.sh):/usr/bin/osmo-clean-workspace.sh" \
-                 -b "$(which osmo-build-dep.sh):/usr/bin/osmo-build-dep.sh" \
-                 -b "$(which osmo-deps.sh):/usr/bin/osmo-deps.sh" \
-                  ./contrib/jenkins.sh
-                exit 0
-        fi
-fi
-
-set -ex
+case "$INSTR" in
+	"--with-neon"*)
+		case "$(arch)" in
+			arm*)
+				;;
+			*)
+				set +x
+				echo "ERROR: trying to build with INSTR=$INSTR but not running on a 32-bit arm machine! (arch=$(arch))"
+				exit 1
+				;;
+		esac
+		;;
+esac
 
 if ! [ -x "$(command -v osmo-build-dep.sh)" ]; then
 	echo "Error: We need to have scripts/osmo-deps.sh from http://git.osmocom.org/osmo-ci/ in PATH !"
@@ -85,7 +44,17 @@ export PKG_CONFIG_PATH="$inst/lib/pkgconfig:$PKG_CONFIG_PATH"
 export LD_LIBRARY_PATH="$inst/lib"
 export PATH="$inst/bin:$PATH"
 
-CONFIG="--enable-sanitize --enable-werror --with-uhd --with-usrp1 --with-lms --with-ipc --with-mstrx $INSTR"
+CONFIG="
+	--enable-sanitize
+	--enable-werror
+	--with-bladerf
+	--with-ipc
+	--with-lms
+	--with-mstrx
+	--with-uhd
+	--with-usrp1
+	$INSTR
+"
 
 # Additional configure options and depends
 if [ "$WITH_MANUALS" = "1" ]; then
@@ -109,7 +78,7 @@ $MAKE check \
   || cat-testlogs.sh
 
 if arch | grep -v -q arm; then
-	DISTCHECK_CONFIGURE_FLAGS="$CONFIG" $MAKE $PARALLEL_MAKE distcheck \
+	DISTCHECK_CONFIGURE_FLAGS="$(echo $CONFIG | tr -d '\n')" $MAKE $PARALLEL_MAKE distcheck \
 	  || cat-testlogs.sh
 fi
 

contrib/osmo-trx.spec.in

@@ -1,254 +0,0 @@
-#
-# spec file for package osmo-trx
-#
-# Copyright (c) 2017, Martin Hauke <mardnh@gmx.de>
-#
-# All modifications and additions to the file contributed by third parties
-# remain the property of their copyright owners, unless otherwise agreed
-# upon. The license for this file, and modifications and additions to the
-# file, is the same license as for the pristine package itself (unless the
-# license for the pristine package is not an Open Source License, in which
-# case the license is the MIT License). An "Open Source License" is a
-# license that conforms to the Open Source Definition (Version 1.9)
-# published by the Open Source Initiative.
-
-Name:           osmo-trx
-Version:        @VERSION@
-Release:        0
-Summary:        SDR transceiver that implements Layer 1 of a GSM BTS
-License:        AGPL-3.0-or-later
-Group:          Productivity/Telephony/Servers
-URL:            https://osmocom.org/projects/osmotrx
-Source:         %{name}-%{version}.tar.xz
-BuildRequires:  autoconf
-BuildRequires:  automake
-BuildRequires:  fdupes
-BuildRequires:  gcc-c++
-BuildRequires:  libtool
-BuildRequires:  pkgconfig >= 0.20
-%if 0%{?suse_version}
-BuildRequires:  systemd-rpm-macros
-%endif
-%if ! 0%{?centos_ver}
-BuildRequires:  pkgconfig(LimeSuite)
-BuildRequires:  pkgconfig(usrp) >= 3.3
-%endif
-BuildRequires:  pkgconfig(fftw3f)
-BuildRequires:  pkgconfig(libosmocoding) >= 1.6.0
-BuildRequires:  pkgconfig(libosmocore) >= 1.6.0
-BuildRequires:  pkgconfig(libosmoctrl) >= 1.6.0
-BuildRequires:  pkgconfig(libosmovty) >= 1.6.0
-BuildRequires:  pkgconfig(libusb-1.0)
-BuildRequires:  pkgconfig(uhd)
-%{?systemd_requires}
-%if 0%{?suse_version} > 1325
-BuildRequires:  libboost_program_options-devel
-BuildRequires:  libboost_system-devel
-BuildRequires:  libboost_test-devel
-BuildRequires:  libboost_thread-devel
-%else
-BuildRequires:  boost-devel
-%endif
-
-%description
-OsmoTRX is a software-defined radio transceiver that implements the Layer 1
-physical layer of a BTS comprising the following 3GPP specifications:
-
-TS 05.01 "Physical layer on the radio path"
-TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
-TS 05.04 "Modulation"
-TS 05.10 "Radio subsystem synchronization"
-
-In this context, BTS is "Base transceiver station". It's the stations that
-connect mobile phones to the mobile network.
-
-3GPP is the "3rd Generation Partnership Project" which is the collaboration
-between different telecommunication associations for developing new
-generations of mobile phone networks. (post-2G/GSM)
-
-%package uhd
-Summary:        SDR transceiver that implements Layer 1 of a GSM BTS (UHD)
-Group:          Productivity/Telephony/Servers
-Requires:       uhd-firmware
-
-%description uhd
-OsmoTRX is a software-defined radio transceiver that implements the Layer 1
-physical layer of a BTS comprising the following 3GPP specifications:
-
-TS 05.01 "Physical layer on the radio path"
-TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
-TS 05.04 "Modulation"
-TS 05.10 "Radio subsystem synchronization"
-
-In this context, BTS is "Base transceiver station". It's the stations that
-connect mobile phones to the mobile network.
-
-3GPP is the "3rd Generation Partnership Project" which is the collaboration
-between different telecommunication associations for developing new
-generations of mobile phone networks. (post-2G/GSM)
-
-%if ! 0%{?centos_ver}
-%package usrp1
-Summary:        SDR transceiver that implements Layer 1 of a GSM BTS (USRP1)
-Group:          Productivity/Telephony/Servers
-
-%description usrp1
-OsmoTRX is a software-defined radio transceiver that implements the Layer 1
-physical layer of a BTS comprising the following 3GPP specifications:
-
-TS 05.01 "Physical layer on the radio path"
-TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
-TS 05.04 "Modulation"
-TS 05.10 "Radio subsystem synchronization"
-
-In this context, BTS is "Base transceiver station". It's the stations that
-connect mobile phones to the mobile network.
-
-3GPP is the "3rd Generation Partnership Project" which is the collaboration
-between different telecommunication associations for developing new
-generations of mobile phone networks. (post-2G/GSM)
-
-%package lms
-Summary:        SDR transceiver that implements Layer 1 of a GSM BTS (LimeSuite)
-Group:          Productivity/Telephony/Servers
-
-%description lms
-OsmoTRX is a software-defined radio transceiver that implements the Layer 1
-physical layer of a BTS comprising the following 3GPP specifications:
-
-TS 05.01 "Physical layer on the radio path"
-TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
-TS 05.04 "Modulation"
-TS 05.10 "Radio subsystem synchronization"
-
-In this context, BTS is "Base transceiver station". It's the stations that
-connect mobile phones to the mobile network.
-
-3GPP is the "3rd Generation Partnership Project" which is the collaboration
-between different telecommunication associations for developing new
-generations of mobile phone networks. (post-2G/GSM)
-%endif
-
-%package ipc
-Summary:        SDR transceiver that implements Layer 1 of a GSM BTS (IPC)
-Group:          Productivity/Telephony/Servers
-
-%description ipc
-OsmoTRX is a software-defined radio transceiver that implements the Layer 1
-physical layer of a BTS comprising the following 3GPP specifications:
-
-TS 05.01 "Physical layer on the radio path"
-TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
-TS 05.04 "Modulation"
-TS 05.10 "Radio subsystem synchronization"
-
-In this context, BTS is "Base transceiver station". It's the stations that
-connect mobile phones to the mobile network.
-
-3GPP is the "3rd Generation Partnership Project" which is the collaboration
-between different telecommunication associations for developing new
-generations of mobile phone networks. (post-2G/GSM)
-
-%package ipc-test
-Summary:        SDR transceiver that implements Layer 1 of a GSM BTS (IPC) driver test utility
-Group:          Productivity/Telephony/Servers
-
-%description ipc-test
-OsmoTRX is a software-defined radio transceiver that implements the Layer 1
-physical layer of a BTS comprising the following 3GPP specifications:
-
-This package include the test tools for osmo-trx-ipc
-
-%prep
-%setup -q
-
-%build
-echo "%{version}" >.tarball-version
-autoreconf -fi
-
-%if 0%{?centos_ver}
-%configure \
-  --docdir=%{_docdir}/%{name} \
-  --with-systemdsystemunitdir=%{_unitdir} \
-  --without-lms \
-  --with-uhd \
-  --without-usrp1 \
-  --with-ipc
-%else
-%configure \
-  --docdir=%{_docdir}/%{name} \
-  --with-systemdsystemunitdir=%{_unitdir} \
-  --with-lms \
-  --with-uhd \
-  --with-usrp1 \
-  --with-ipc
-%endif
-
-make %{?_smp_mflags} V=1
-
-%check
-make %{?_smp_mflags} check || (find . -name testsuite.log -exec cat {} +)
-
-%install
-%make_install
-%fdupes -s %{buildroot}/%{_datadir}
-
-%if 0%{?suse_version}
-%pre    lms %service_add_pre    osmo-trx-lms.service
-%post   lms %service_add_post   osmo-trx-lms.service
-%preun  lms %service_del_preun  osmo-trx-lms.service
-%postun lms %service_del_postun osmo-trx-lms.service
-%pre    uhd %service_add_pre    osmo-trx-uhd.service
-%post   uhd %service_add_post   osmo-trx-uhd.service
-%preun  uhd %service_del_preun  osmo-trx-uhd.service
-%postun uhd %service_del_postun osmo-trx-uhd.service
-%pre    usrp1 %service_add_pre    osmo-trx-usrp1.service
-%post   usrp1 %service_add_post   osmo-trx-usrp1.service
-%preun  usrp1 %service_del_preun  osmo-trx-usrp1.service
-%postun usrp1 %service_del_postun osmo-trx-usrp1.service
-%pre    ipc %service_add_pre    osmo-trx-ipc.service
-%post   ipc %service_add_post   osmo-trx-ipc.service
-%preun  ipc %service_del_preun  osmo-trx-ipc.service
-%postun ipc %service_del_postun osmo-trx-ipc.service
-%endif
-
-%files
-%license COPYING
-%doc README.md
-%doc %{_docdir}/%{name}/examples
-
-%if ! 0%{?centos_ver}
-%files lms
-%{_bindir}/osmo-trx-lms
-%dir %{_sysconfdir}/osmocom
-%config(noreplace) %{_sysconfdir}/osmocom/osmo-trx-lms.cfg
-%{_unitdir}/osmo-trx-lms.service
-%endif
-
-%files uhd
-%{_bindir}/osmo-trx-uhd
-%dir %{_sysconfdir}/osmocom
-%config(noreplace) %{_sysconfdir}/osmocom/osmo-trx-uhd.cfg
-%{_unitdir}/osmo-trx-uhd.service
-
-%if ! 0%{?centos_ver}
-%files usrp1
-%{_bindir}/osmo-trx-usrp1
-%dir %{_datadir}/usrp
-%dir %{_datadir}/usrp/rev2
-%dir %{_datadir}/usrp/rev4
-%{_datadir}/usrp/rev2/std_inband.rbf
-%{_datadir}/usrp/rev4/std_inband.rbf
-%{_unitdir}/osmo-trx-usrp1.service
-%endif
-
-%files ipc
-%{_bindir}/osmo-trx-ipc
-%dir %{_sysconfdir}/osmocom
-%config(noreplace) %{_sysconfdir}/osmocom/osmo-trx-ipc.cfg
-%{_unitdir}/osmo-trx-ipc.service
-
-%files ipc-test
-%{_bindir}/ipc-driver-test
-
-%changelog

contrib/systemd/osmo-trx-ipc.service

@@ -1,13 +1,18 @@
 [Unit]
 Description=Osmocom SDR BTS L1 Transceiver (IPC Backend)
+After=network-online.target
+Wants=network-online.target
 
 [Service]
 Type=simple
 Restart=always
 StateDirectory=osmocom
 WorkingDirectory=%S/osmocom
+User=osmocom
+Group=osmocom
 ExecStart=/usr/bin/osmo-trx-ipc -C /etc/osmocom/osmo-trx-ipc.cfg
 RestartSec=2
+AmbientCapabilities=CAP_SYS_NICE
 # CPU scheduling policy:
 CPUSchedulingPolicy=rr
 # For real-time scheduling policies an integer between 1 (lowest priority) and 99 (highest priority):

contrib/systemd/osmo-trx-lms.service

@@ -1,13 +1,18 @@
 [Unit]
 Description=Osmocom SDR BTS L1 Transceiver (LimeSuite backend)
+After=network-online.target
+Wants=network-online.target
 
 [Service]
 Type=simple
 Restart=always
 StateDirectory=osmocom
 WorkingDirectory=%S/osmocom
+User=osmocom
+Group=osmocom
 ExecStart=/usr/bin/osmo-trx-lms -C /etc/osmocom/osmo-trx-lms.cfg
 RestartSec=2
+AmbientCapabilities=CAP_SYS_NICE
 # CPU scheduling policy:
 CPUSchedulingPolicy=rr
 # For real-time scheduling policies an integer between 1 (lowest priority) and 99 (highest priority):

contrib/systemd/osmo-trx-uhd.service

@@ -1,13 +1,19 @@
 [Unit]
 Description=Osmocom SDR BTS L1 Transceiver (UHD Backend)
+After=network-online.target
+Wants=network-online.target
 
 [Service]
 Type=simple
 Restart=always
 StateDirectory=osmocom
 WorkingDirectory=%S/osmocom
+Environment=HOME=%S/osmocom
+User=osmocom
+Group=osmocom
 ExecStart=/usr/bin/osmo-trx-uhd -C /etc/osmocom/osmo-trx-uhd.cfg
 RestartSec=2
+AmbientCapabilities=CAP_SYS_NICE
 # CPU scheduling policy:
 CPUSchedulingPolicy=rr
 # For real-time scheduling policies an integer between 1 (lowest priority) and 99 (highest priority):

contrib/systemd/osmo-trx-usrp1.service

@@ -1,13 +1,18 @@
 [Unit]
 Description=Osmocom SDR BTS L1 Transceiver (libusrp backend)
+After=network-online.target
+Wants=network-online.target
 
 [Service]
 Type=simple
 Restart=always
 StateDirectory=osmocom
 WorkingDirectory=%S/osmocom
+User=osmocom
+Group=osmocom
 ExecStart=/usr/bin/osmo-trx-usrp1 -C /etc/osmocom/osmo-trx-usrp1.cfg
 RestartSec=2
+AmbientCapabilities=CAP_SYS_NICE
 # CPU scheduling policy:
 CPUSchedulingPolicy=rr
 # For real-time scheduling policies an integer between 1 (lowest priority) and 99 (highest priority):

debian/changelog

@@ -1,3 +1,174 @@
+osmo-trx (1.7.1) unstable; urgency=medium
+
+  [ Oliver Smith ]
+  * contrib/jenkins: remove broken chroot + qemu code
+
+  [ Neels Hofmeyr ]
+  * comma_delimited_to_vector() optimization CID#465430
+
+ -- Oliver Smith <osmith@sysmocom.de>  Wed, 12 Feb 2025 12:43:24 +0100
+
+osmo-trx (1.7.0) unstable; urgency=medium
+
+  [ Eric ]
+  * ms: adjust ts advance
+  * ms: reduce rx burst queue size
+  * ms: init blade with fpga control
+  * devices: fix wrong gain to power mapping
+  * ms: get rid of std::thread
+  * ms: add demod test tool and data
+
+  [ Vadim Yanitskiy ]
+  * osmo-trx-ms: bump osmocom-bb submodule commit
+  * Transceiver::ctrl_sock_handle_rx(): fix copy-pasted comments
+  * build: include version files into the release tarball
+  * doc/examples: fix missing config files in release tarballs
+  * README.md: cosmetic: fix a typo
+
+  [ Harald Welte ]
+  * osmo-trx-uhd: Make sure HOME environment variable is set
+  * README.md: Improve markdown formatting
+  * README.md: Add Forum and Issue Tracker links
+  * Add funding link to github mirror
+  * README.md: Remove stray apostrophe
+
+  [ Andreas Eversberg ]
+  * Use uniform log format for default config files
+
+  [ Eric Wild ]
+  * ms: do not set the blade tuning mode
+  * ms: hard preswapped VA gsm bits
+  * ms: add sigproclib demod
+  * ms: fix up template deduction failure
+  * ms: update osmocom-bb submodule
+  * ms: disabe uhd ms build
+  * transceiver: use log level cache
+
+  [ Oliver Smith ]
+  * gitignore: add .version
+  * debian/rules: make configure args diff friendly
+  * debian: add osmo-trx-ms-blade
+  * contrib/jenkins: make configure args diff friendly
+  * contrib/jenkins: add --with-bladerf
+  * contrib: remove rpm spec file
+  * contrib/systemd: run as osmocom user
+  * contrib/systemd/osmo-trx-uhd: fix HOME=
+
+  [ Pau Espin Pedrol ]
+  * code-architecture.adoc: Fix missing alignment in digraph
+  * doc: Introduce documentation for osmo-trx-ipc and its IPC interface
+
+ -- Oliver Smith <osmith@sysmocom.de>  Wed, 24 Jul 2024 15:57:14 +0200
+
+osmo-trx (1.6.0) unstable; urgency=medium
+
+  [ Vadim Yanitskiy ]
+  * configure.ac: check if LIBTRXCON_DIR (submodule) exists
+  * tests: Makefile.am: move -I flags from AM_CFLAGS to AM_CPPFLAGS
+  * tests: there shall be no libraries in LDFLAGS
+  * tests: use -no-install libtool flag to avoid ./lt-* scripts
+  * tests: LMSDeviceTest: fix CPPFLAGS vs CXXFLAGS
+  * ipc-driver-test: clean up variables in Makefile.am
+  * CommonLibs: remove unused *trx in cfg[_no]_ctr_error_threshold_cmd
+  * CommonLibs: clean up and fix Makefile.am
+  * ms: logging: print category, level, and extended timestamp
+
+  [ Oliver Smith ]
+  * Run struct_endianness.py
+  * debian: set compat level to 10
+  * systemd: depend on networking-online.target
+  * USRPDevice:updateAlignment: remove byteswap code
+
+  [ Eric ]
+  * .clang-format: adjust template formatting
+  * ms: update submodule to currently known working version
+  * ms: adjust tx scaling for tx samples
+  * ms : fix the template formatting
+  * ms: fix the gain init for blade
+  * ms: prettify scheduling + add odroid
+  * ms: fix startup & shutdown of blade
+  * ms: block burst q to upper layer
+  * ms: use single thread pool
+  * ms : rename var
+  * ms : rename var
+  * ms: cache frequency
+  * ms: pretty tx buf class
+  * ms: rearrange internal trxcon<->phy if
+  * ms: remove syncthing tool
+  * ms: prune common sch acq code
+  * ms: rearrange code to allow clean exits
+  * ms: flexible template for value_type buffer sum
+  * ms: make init call less confusing
+  * transceiver: pass cfg struct instead of args
+  * devices: unify band handling
+  * ms: fix blocking logging
+  * ms: drop the tx burst padding
+  * trx: fix dev-args issue
+  * ms: update osmocom-bb
+  * ms: restructure the va code to add rach support
+  * transceiver: add experimental viterbi equalizer support
+  * ms/va: make ancient gcc < 8 happy
+  * ms: fix thread prio startup issue
+  * ms: fix a few coverity complaints related to initialization
+  * ms: bump osmocom-bb submodule to current head
+
+  [ Eric Wild ]
+  * ms: adjust float<->integral type conversion
+  * ms: sch: drop intermediate softvector
+  * devices: add freq/gain override for uhd
+
+  [ arehbein ]
+  * Transition to use of 'telnet_init_default'
+
+  [ Pau Espin Pedrol ]
+  * Call osmo_fd_unregister() before closing and changing bfd->fd
+  * ms: update osmocom-bb submodule
+
+ -- Pau Espin Pedrol <pespin@sysmocom.de>  Tue, 12 Sep 2023 15:56:57 +0200
+
+osmo-trx (1.5.0) unstable; urgency=medium
+
+  [ Oliver Smith ]
+  * configure.ac: add -lboost_thread for uhd < 4.2.0
+  * gitignore: add uhddev_ipc.cpp
+  * contrib/jenkins: don't run "make distcheck" on arm
+
+  [ Vadim Yanitskiy ]
+  * threshold_timer_update_intv(): call osmo_timer_del() unconditionally
+  * Transceiver::expectedCorrType(): RACH is always 8-bit on PTCCH/U
+  * contrib/jenkins.sh: dump submodule status before building
+  * configure.ac: fix: properly check whether to enable ms-trx
+  * configure.ac: allow building without cloning submodules
+  * configure.ac: cosmetic: rearrange MS TRX related logic
+  * configure.ac: make use of AC_MSG_CHECKING and AC_MSG_RESULT
+
+  [ Max ]
+  * Set working directory in systemd service file
+  * Add realtime scheduling and set priority in service file
+  * ctrl: take both address and port from vty config
+
+  [ Eric ]
+  * ignore vscode dirs
+  * rename noisevector class -> avgvector
+  * osmocom-bb for ms-trx side trxcon integration
+  * add checkpatch config
+  * bladerf xa4 support
+  * update osmocom-bb submodule to fix make distcheck
+  * vita demod by piotr krysik, modified
+  * properly update osmocom-bb submodule, for real this time..
+  * ms-trx support
+  * clean up mutex, scopedlock, and signal classes
+  * ipc: add missing override
+  * clang-format: proper c++ standard
+  * ipc: remove old autotools workaround
+  * ms: init trash used to escape the usb callbacks
+  * radio interface: fix init
+
+  [ Eric Wild ]
+  * mstrx: do not wait forever if clock locking fails
+
+ -- Pau Espin Pedrol <pespin@sysmocom.de>  Tue, 07 Feb 2023 17:08:17 +0100
+
 osmo-trx (1.4.1) unstable; urgency=medium
 
   [ Oliver Smith ]

debian/compat

@@ -1 +1 @@
-9
+10

debian/control

@@ -2,7 +2,7 @@ Source: osmo-trx
 Section: net
 Priority: optional
 Maintainer: Osmocom team <openbsc@lists.osmocom.org>
-Build-Depends: debhelper (>= 9),
+Build-Depends: debhelper (>= 10),
                autotools-dev,
                autoconf-archive,
                pkg-config,
@@ -14,8 +14,9 @@ Build-Depends: debhelper (>= 9),
                libtalloc-dev,
                libusrp-dev,
                liblimesuite-dev,
-               libosmocore-dev (>= 1.6.0),
-               osmo-gsm-manuals-dev
+               libbladerf-dev,
+               libosmocore-dev (>= 1.10.0),
+               osmo-gsm-manuals-dev (>= 1.6.0)
 Standards-Version: 3.9.6
 Vcs-Browser: https://gitea.osmocom.org/cellular-infrastructure/osmo-trx
 Vcs-Git: https://gitea.osmocom.org/cellular-infrastructure/osmo-trx
@@ -110,6 +111,25 @@ Description: SDR transceiver that implements Layer 1 of a GSM BTS (generic IPC)
  between different telecommunication associations for developing new
  generations of mobile phone networks. (post-2G/GSM)
 
+Package: osmo-trx-ms-blade
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: MS side transceiver (bladeRF)
+ OsmoTRX is a software-defined radio transceiver that implements the Layer 1
+ physical layer of a BTS comprising the following 3GPP specifications:
+ .
+ TS 05.01 "Physical layer on the radio path"
+ TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
+ TS 05.04 "Modulation"
+ TS 05.10 "Radio subsystem synchronization"
+ .
+ In this context, BTS is "Base transceiver station". It's the stations that
+ connect mobile phones to the mobile network.
+ .
+ 3GPP is the "3rd Generation Partnership Project" which is the collaboration
+ between different telecommunication associations for developing new
+ generations of mobile phone networks. (post-2G/GSM)
+
 Package: osmo-trx-doc
 Architecture: all
 Section: doc

debian/osmo-trx-ipc.postinst

@@ -0,0 +1,38 @@
+#!/bin/sh -e
+case "$1" in
+	configure)
+		# Create the osmocom group and user (if it doesn't exist yet)
+		if ! getent group osmocom >/dev/null; then
+			groupadd --system osmocom
+		fi
+		if ! getent passwd osmocom >/dev/null; then
+			useradd \
+				--system \
+				--gid osmocom \
+				--home-dir /var/lib/osmocom \
+				--shell /sbin/nologin \
+				--comment "Open Source Mobile Communications" \
+				osmocom
+		fi
+
+		# Fix permissions of previous (root-owned) install (OS#4107)
+		if dpkg --compare-versions "$2" le "1.13.0"; then
+			if [ -e /etc/osmocom/osmo-trx-ipc.cfg ]; then
+				chown -v osmocom:osmocom /etc/osmocom/osmo-trx-ipc.cfg
+				chmod -v 0660 /etc/osmocom/osmo-trx-ipc.cfg
+			fi
+
+			if [ -d /etc/osmocom ]; then
+				chown -v root:osmocom /etc/osmocom
+				chmod -v 2775 /etc/osmocom
+			fi
+
+			mkdir -p /var/lib/osmocom
+			chown -R -v osmocom:osmocom /var/lib/osmocom
+		fi
+		;;
+esac
+
+# dh_installdeb(1) will replace this with shell code automatically
+# generated by other debhelper scripts.
+#DEBHELPER#

debian/osmo-trx-lms.postinst

@@ -0,0 +1,38 @@
+#!/bin/sh -e
+case "$1" in
+	configure)
+		# Create the osmocom group and user (if it doesn't exist yet)
+		if ! getent group osmocom >/dev/null; then
+			groupadd --system osmocom
+		fi
+		if ! getent passwd osmocom >/dev/null; then
+			useradd \
+				--system \
+				--gid osmocom \
+				--home-dir /var/lib/osmocom \
+				--shell /sbin/nologin \
+				--comment "Open Source Mobile Communications" \
+				osmocom
+		fi
+
+		# Fix permissions of previous (root-owned) install (OS#4107)
+		if dpkg --compare-versions "$2" le "1.13.0"; then
+			if [ -e /etc/osmocom/osmo-trx-lms.cfg ]; then
+				chown -v osmocom:osmocom /etc/osmocom/osmo-trx-lms.cfg
+				chmod -v 0660 /etc/osmocom/osmo-trx-lms.cfg
+			fi
+
+			if [ -d /etc/osmocom ]; then
+				chown -v root:osmocom /etc/osmocom
+				chmod -v 2775 /etc/osmocom
+			fi
+
+			mkdir -p /var/lib/osmocom
+			chown -R -v osmocom:osmocom /var/lib/osmocom
+		fi
+		;;
+esac
+
+# dh_installdeb(1) will replace this with shell code automatically
+# generated by other debhelper scripts.
+#DEBHELPER#

debian/osmo-trx-ms-blade.install

@@ -0,0 +1 @@
+/usr/bin/osmo-trx-ms-blade

debian/osmo-trx-uhd.postinst

@@ -0,0 +1,38 @@
+#!/bin/sh -e
+case "$1" in
+	configure)
+		# Create the osmocom group and user (if it doesn't exist yet)
+		if ! getent group osmocom >/dev/null; then
+			groupadd --system osmocom
+		fi
+		if ! getent passwd osmocom >/dev/null; then
+			useradd \
+				--system \
+				--gid osmocom \
+				--home-dir /var/lib/osmocom \
+				--shell /sbin/nologin \
+				--comment "Open Source Mobile Communications" \
+				osmocom
+		fi
+
+		# Fix permissions of previous (root-owned) install (OS#4107)
+		if dpkg --compare-versions "$2" le "1.13.0"; then
+			if [ -e /etc/osmocom/osmo-trx-uhd.cfg ]; then
+				chown -v osmocom:osmocom /etc/osmocom/osmo-trx-uhd.cfg
+				chmod -v 0660 /etc/osmocom/osmo-trx-uhd.cfg
+			fi
+
+			if [ -d /etc/osmocom ]; then
+				chown -v root:osmocom /etc/osmocom
+				chmod -v 2775 /etc/osmocom
+			fi
+
+			mkdir -p /var/lib/osmocom
+			chown -R -v osmocom:osmocom /var/lib/osmocom
+		fi
+		;;
+esac
+
+# dh_installdeb(1) will replace this with shell code automatically
+# generated by other debhelper scripts.
+#DEBHELPER#

debian/osmo-trx-usrp1.postinst

@@ -0,0 +1,38 @@
+#!/bin/sh -e
+case "$1" in
+	configure)
+		# Create the osmocom group and user (if it doesn't exist yet)
+		if ! getent group osmocom >/dev/null; then
+			groupadd --system osmocom
+		fi
+		if ! getent passwd osmocom >/dev/null; then
+			useradd \
+				--system \
+				--gid osmocom \
+				--home-dir /var/lib/osmocom \
+				--shell /sbin/nologin \
+				--comment "Open Source Mobile Communications" \
+				osmocom
+		fi
+
+		# Fix permissions of previous (root-owned) install (OS#4107)
+		if dpkg --compare-versions "$2" le "1.13.0"; then
+			if [ -e /etc/osmocom/osmo-trx-usrp1.cfg ]; then
+				chown -v osmocom:osmocom /etc/osmocom/osmo-trx-usrp1.cfg
+				chmod -v 0660 /etc/osmocom/osmo-trx-usrp1.cfg
+			fi
+
+			if [ -d /etc/osmocom ]; then
+				chown -v root:osmocom /etc/osmocom
+				chmod -v 2775 /etc/osmocom
+			fi
+
+			mkdir -p /var/lib/osmocom
+			chown -R -v osmocom:osmocom /var/lib/osmocom
+		fi
+		;;
+esac
+
+# dh_installdeb(1) will replace this with shell code automatically
+# generated by other debhelper scripts.
+#DEBHELPER#

debian/rules

@@ -9,7 +9,16 @@ override_dh_shlibdeps:
 	dh_shlibdeps --dpkg-shlibdeps-params=--ignore-missing-info
 
 override_dh_auto_configure:
-	dh_auto_configure -- --with-uhd --with-usrp1 --with-lms --with-ipc --with-systemdsystemunitdir=/lib/systemd/system --enable-manuals
+	dh_auto_configure -- \
+		--enable-manuals \
+		--with-systemdsystemunitdir=/lib/systemd/system \
+		--with-bladerf \
+		--with-ipc \
+		--with-lms \
+		--with-mstrx \
+		--with-uhd \
+		--with-usrp1 \
+		$(NULL)
 
 override_dh_strip:
 	dh_strip --dbg-package=osmo-trx-dbg

doc/examples/Makefile.am

@@ -1,3 +1,15 @@
+# all config examples must be listed here unconditionally, so that
+# all of them end up in the release tarball (see OS#6349)
+EXTRA_DIST = \
+	osmo-trx-uhd/osmo-trx-limesdr.cfg \
+	osmo-trx-uhd/osmo-trx-usrp_b200.cfg \
+	osmo-trx-uhd/osmo-trx-uhd.cfg \
+	osmo-trx-uhd/osmo-trx-umtrx.cfg \
+	osmo-trx-lms/osmo-trx-limesdr.cfg \
+	osmo-trx-lms/osmo-trx-lms.cfg \
+	osmo-trx-ipc/osmo-trx-ipc.cfg \
+	$(NULL)
+
 OSMOCONF_FILES =
 osmoconfdir = $(sysconfdir)/osmocom
 
@@ -19,7 +31,6 @@ OSMOCONF_FILES += osmo-trx-ipc/osmo-trx-ipc.cfg
 endif
 
 osmoconf_DATA = $(OSMOCONF_FILES)
-EXTRA_DIST = $(OSMOCONF_FILES)
 
 CFG_FILES = find $(srcdir) -type f -name '*.cfg*' | sed -e 's,^$(srcdir),,'
 

doc/examples/osmo-trx-ipc/osmo-trx-ipc.cfg

@@ -1,9 +1,11 @@
 log stderr
  logging filter all 1
  logging color 1
+ logging print category-hex 0
  logging print category 1
- logging timestamp 1
- logging print file basename
+ logging timestamp 0
+ logging print file basename last
+ logging print level 1
  logging level set-all notice
 !
 line vty

doc/examples/osmo-trx-lms/osmo-trx-limesdr.cfg

@@ -1,9 +1,11 @@
 log stderr
  logging filter all 1
  logging color 1
+ logging print category-hex 0
  logging print category 1
- logging timestamp 1
- logging print file basename
+ logging timestamp 0
+ logging print file basename last
+ logging print level 1
  logging level set-all notice
 !
 line vty

doc/examples/osmo-trx-uhd/osmo-trx-limesdr.cfg

@@ -1,9 +1,11 @@
 log stderr
  logging filter all 1
  logging color 1
+ logging print category-hex 0
  logging print category 1
- logging timestamp 1
- logging print file basename
+ logging timestamp 0
+ logging print file basename last
+ logging print level 1
  logging level set-all notice
 !
 line vty

doc/examples/osmo-trx-uhd/osmo-trx-umtrx.cfg

@@ -1,9 +1,11 @@
 log stderr
  logging filter all 1
  logging color 1
+ logging print category-hex 0
  logging print category 1
- logging timestamp 1
- logging print file basename
+ logging timestamp 0
+ logging print file basename last
+ logging print level 1
  logging level set-all notice
 !
 line vty

doc/examples/osmo-trx-uhd/osmo-trx-usrp_b200.cfg

@@ -1,9 +1,11 @@
 log stderr
  logging filter all 1
  logging color 1
+ logging print category-hex 0
  logging print category 1
- logging timestamp 1
- logging print file basename
+ logging timestamp 0
+ logging print file basename last
+ logging print level 1
  logging level set-all notice
 !
 line vty

doc/manuals/chapters/code-architecture.adoc

@@ -9,7 +9,7 @@ digraph hierarchy {
 node[shape=record,style=filled,fillcolor=gray95]
 edge[dir=back, arrowtail=empty]
 
-2[label = "{Transceiver|+ constructor()\l+ destructor()\l+ init()\l+ numChans()\l+ receiveFIFO()\l+ setSignalHandler()}"]
+2[label = "{Transceiver|+ constructor()\l+ destructor()\l+ init()\l+ numChans()\l+ receiveFIFO()\l+ setSignalHandler()\l}"]
 3[label = "{RadioInterface|...}"]
 4[label = "{RadioInterfaceResamp|...}"]
 5[label = "{RadioInterfaceMulti|...}"]
@@ -17,6 +17,7 @@ edge[dir=back, arrowtail=empty]
 7[label = "{UHDDevice|...}"]
 8[label = "{LMSDevice|...}"]
 9[label = "{USRPDevice|...}"]
+10[label = "{IPCDevice|...}"]
 
 2->3[arrowtail=odiamond]
 3->4[constraint=false]
@@ -25,6 +26,7 @@ edge[dir=back, arrowtail=empty]
 6->7
 6->8
 6->9
+6->10
 }
 ----
 

doc/manuals/chapters/ipc_if.adoc

@@ -0,0 +1,301 @@
+[[ipc_if]]
+== osmo-trx-ipc IPC Interface
+
+This interface is the one used by _osmo_trx_ipc_ backend to communicate to a
+third party process in charge of driving the lowest layer device-specific bits
+(from now on the Driver).
+
+It consists of a set of Unix Domain (UD) sockets for the control plane, plus a
+shared memory region for the data plane.
+
+Related code can be found in the
+https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc[Transceiver52M/device/ipc/]
+directory in _osmo-trx.git_.
+
+If you are a potential driver implementator, the
+various primitives and data structures are publicly available in header file
+https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc/shm.h[Transceiver52M/device/ipc/shm.h].
+
+=== Control plane
+
+Control plane protocol is transmitted over Unix Domain (UD) sockets using
+message based primitives. Each primitive has a type identified by an integer,
+and each type of primitive has a number of extra attributes attached to it. The
+IPC interface consists of 2 types of UD sockets:
+
+* _Master_ UD socket: One per osmo-trx-ipc process.
+
+* _Channel_ UD socket: One for each channel managed by osmo-trx-ipc process.
+
+The _Driver_ is in all cases expected to take the server role when creating UD
+sockets, while _osmo-trx-ipc_ takes the client role and connects to sockets
+provided by the driver.
+
+=== Master UD socket
+
+During startup, _osmo-trx-ipc_ will try connecting to the _Driver_ Master UD
+socket located in the path provided by its own (VTY) configuration. As a result,
+it means the _Driver_ process must be running and listening on the Master UD
+socket before _osmo-trx-ipc_ is started, otherwise _osmo-trx-ipc_ will fail and
+exit.
+
+Once connected, _osmo-trx-ipc_ will submit a `GREETING_REQ` message primitive
+announcing the maximum supported protocol version (first version ever is `1`,
+increasing over time).
+
+The _Driver_ shall then answer in `GREETING_CNF` message primitive with its own
+maximum supported version (`<=` version received), providing 0 if none is
+supported.
+
+If _osmo-trx-ipc_ receives back the requested version, then both sides agreed
+on the protocol version to use.
+If _osmo-trx-ipc_ receives back a lower version, it shall decide to continue
+with version negotiation using a lower version, until a supported version or 0
+is received. If finally 0 is received, _osmo-trx-ipc_ will disconnect and exit
+with failure.
+
+Once the version is negotiated (`v1` as of current date), _osmo-trx-ipc_ will
+ask for device information and available characeristics to the _Driver_ using
+the `INFO_REQ` message primitive.
+
+The _Driver_ shall then answer with a `INFO_CNF` message
+containing information, such as:
+
+* String containing device description
+
+* Available reference clocks,
+
+* {rx,tx} I/Q scaling factors
+
+* Maximum number of channels supported
+
+* for each channel:
+
+** List of available {rx,tx} paths/antennas.
+
+** {min,max}{rx,tx} gains
+
+** Nominal transmit power
+
+All the information received from the _Driver_ during `INFO_CNF` will be used by
+_osmo-trx-ipc_ to decide whether it can fullfil the requested configuration from
+the user, and proceed to open the device, or exit with a failure (for instance
+number of channels, referece clock or tx/rx antenna selected by the user cannot
+be fullfilled).
+
+_osmo-trx-ipc_ will then proceed to open the device and do an initial
+configuration using an `OPEN_REQ` message, where it will provide the _Driver_
+with the desired selected configuration (such as number of channels, rx/tx
+paths, clock reference, bandwidth filters, etc.).
+
+The _Driver_ shall then configure the device and send back a `OPEN_CNF` with:
+
+* `return_code` integer attribute set to `0` on success or `!0` on error.
+
+* Name of the Posix Shared Memory region where data plane is going to be
+transmitted.
+
+* One path for each channel, containing the just-created UD socket to manage
+that channel (for instance by taking Master UD socket path and appending
+`_$chan_idx`).
+
+* Path Delay: this is the loopback path delay in samples (= used as a timestamp
+offset internally by _osmo-trx-ipc_), this value contains the analog delay as
+well as the delay introduced by the digital filters in the fpga in the sdr
+devices, and is therefore device type and bandwidth/sample rate dependant. This
+can not be omitted, wrong values will lead to a _osmo-trx-ipc_ that just doesn't
+detect any bursts.
+
+Finally, _osmo-trx-ipc_ will connect to each channel's UD socket (see next
+section).
+
+Upon _osmo-trx-ipc_ closing the UD master socket connection, the _Driver_ shall
+go into _closed_ state: stop all processing and instruct the device to power
+off.
+
+TIP: See
+https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc/shm.h[Transceiver52M/device/ipc/shm.h]
+for the detailed definition of all the related message primitives and data
+types for this socket.
+
+=== Channel UD Socket
+
+This socket can be used by _osmo-trx-ipc_ to start/stop data plane processing or
+change channel's parameters such as Rx/Tx Frequency, Rx/Tx gains, etc.
+
+A channel can be either in _started_ or _stopped_ state. When a channel is
+created (during `OPEN_REQ` in the Master UD Socket), it's by default in
+_stopped_ state. `START_REQ` and `STOP_REQ` messages control this state, and
+eventual failures can be reported through `START_CNF` and `STOP_CNF` by the
+_Driver_.
+
+The message `START_REQ` instructs the _Driver_ to start processing data in the
+data plane. Similary, `STOP_REQ` instructs the _Driver_ to stop processing data
+in the data plane.
+
+Some parameters are usually changed only when the channel is in stopped mode,
+for instance Rx/Tx Frequency.
+
+TIP: See
+https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc/shm.h[Transceiver52M/device/ipc/shm.h]
+for the detailed definition of all the related message primitives and data
+types for this socket.
+
+=== Data Plane
+
+Data plane protocol is implemented by means of a ring buffer structure on top of
+Posix Shared Memory (see `man 7 shm_overview`) between _osmo-trx-ipc_ process
+and the _Driver_.
+
+The Posix Shared Memory region is created and its memory structure prepared by
+the _Driver_ and its name shared with _osmo-trx-ipc_ during _OPEN_CNF_ message
+in the Master UD Socket from the Control Plane. Resource allocation for the
+shared memory area and cleanup is up to the ipc server, as is mutex
+initialization for the buffers.
+
+==== Posix Shared Memory structure
+
+[[fig-shm-structure]]
+.General overview of Posix Shared Memory structure
+[graphviz]
+----
+digraph hierarchy {
+node[shape=record,style=filled,fillcolor=gray95]
+edge[dir=back, arrowtail=empty]
+
+SHM[label = "{Posix Shared Memory region|+ num_chans\l+ Channels[]\l}"]
+CHAN0[label = "{Channel 0|...}"]
+CHAN1[label = "{Channel 1|...}"]
+CHANN[label = "{Channel ...|}"]
+STREAM0_UL[label = "{UL Stream|+ semaphore\l+ read_next\l+ write_next\l+ buffer_size /* In samples */\l+ num_buffers\l+ sample_buffers[]\l}"]
+STREAM0_DL[label = "{DL Stream|+ semaphore\l+ read_next\l+ write_next\l+ buffer_size /* In samples */\l+ num_buffers\l+ sample_buffers[]\l}"]
+STREAM1_UL[label = "{UL Stream|...}"]
+STREAM1_DL[label = "{DL Stream|...}"]
+STREAMN_UL[label = "{UL Stream|...}"]
+STREAMN_DL[label = "{DL Stream|...}"]
+BUF_0DL0[label = "{DL Sample Buffer 0|+ timestamp\l+ buffer_size /* In samples */\l+ samples[] = [16bit I + 16bit Q,...]\l}"]
+BUF_0DLN[label = "{DL Sample Buffer ....|...}"]
+BUF_0UL0[label = "{UL Sample Buffer 0|+ timestamp\l+ buffer_size /* In samples */\l+ samples[] = [16bit I + 16bit Q,...]\l}"]
+BUF_0ULN[label = "{UL Sample Buffer ...|...}"]
+
+SHM->CHAN0
+SHM->CHAN1
+SHM->CHANN
+
+CHAN0->STREAM0_DL
+CHAN0->STREAM0_UL
+STREAM0_DL->BUF_0DL0
+STREAM0_DL->BUF_0DLN
+STREAM0_UL->BUF_0UL0
+STREAM0_UL->BUF_0ULN
+
+CHAN1->STREAM1_UL
+CHAN1->STREAM1_DL
+
+CHANN->STREAMN_UL
+CHANN->STREAMN_DL
+}
+----
+
+The Posix Shared Memory region contains an array of _Channels_.
+
+Each _Channel_ contains 2 Streams:
+
+* Downlink _Stream_
+
+* Uplink _Stream_
+
+Each _Stream_ handles a ring buffer, which is implemented as:
+
+* An array of pointers to _Sample Buffer_ structures.
+
+* Variables containing the number of buffers in the array, as well as the
+maximum size in samples for each Sample Buffer.
+
+* Variables containing `next_read` and `next_write` _Sample Buffer_ (its index
+in the array of pointers).
+
+* Unnamed Posix semaphores to do the required locking while using the ring
+buffer.
+
+Each _Sample Buffer_ contains:
+
+* A `timestamp` variable, containing the position in the stream of the first
+sample in the buffer
+
+* A `data_len` variable, containing the amount of samples available to process
+in the buffer
+
+* An array of samples of size specified by the stream struct it is part of.
+
+==== Posix Shared Memory format
+
+The Posix Shared memory region shall be formatted applying the following
+considerations:
+
+* All pointers in the memory region are encoded as offsets from the start
+address of the region itself, to allow different processes with different
+address spaces to decode them.
+
+* All structs must be force-aligned to 8 bytes
+
+* Number of buffers must be power of 2 (2,4,8,16,...) - 4 appears to be plenty
+
+* IQ samples format: One (complex) sample consists of 16bit i + 16bit q, so the
+buffer size is number of IQ pairs.
+
+* A reasonable per-buffer size (in samples) is 2500, since this happens to be
+the ususal TX (downlink) buffer size used by _osmo-trx-ipc_ with the b210 (rx
+over-the-wire packet size for the b210 is 2040 samples, so the larger value of
+both is convenient).
+
+TIP: See
+https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc/shm.h[Transceiver52M/device/ipc/shm.h]
+for the detailed definition of all the objects being part of the Posix Shared
+memory region structure
+
+==== Posix Shared Memory procedures
+
+The queue in the shared memory area is not supposed to be used for actual
+buffering of data, only for exchange, so the general expectation is that it is
+mostly empty. The only exception to that might be minor processing delays, and
+during startup.
+
+Care must be taken to ensure that only timed waits for the mutex protecting it
+and the condition variables are used, in order to ensure that no deadlock occurs
+should the other side die/quit.
+
+Thread cancellation should be disabled during reads/writes from/to the queue. In
+general a timeout can be considered a non recoverable error during regular
+processing after startup, at least with the current timeout value of one second.
+
+Should over- or underflows occur a corresponding message should be sent towards
+_osmo-trx-ipc_.
+
+Upon **read** of `N` samples, the reader does something like:
+
+. Acquire the semaphore in the channel's stream object.
+
+. Read `stream->next_read`, if `next_read==next_write`, become blocked in
+another sempahore (unlocking the previous one) until writer signals us, then
+`buff = stream->buffers[next_read]`
+
+. Read `buff->data_len` samples, reset the buffer data (`data_len=0`),
+increment `next_read` and if read samples is `<N`, continue with next buffer
+until `next_read==next_write`, then block again or if timeout elapsed, then  we
+reach conditon buffer underflow and `return len < N`.
+
+. Release the semaphore
+
+Upon **write** of `N` samples, the writer does something like:
+
+. Acquire the semapore in the channel's stream object.
+
+. Write samples to `buff = stream->buffers[next_write]`. If `data_len!=0`,
+signal `buffer_overflow` (increase field in stream object) and probably
+increase next_read`.
+
+. Increase `next_write`.
+
+. If `next_write` was `== next_read`, signal the reader through the other
+semaphore that it can continue reading.

doc/manuals/chapters/trx-backends.adoc

@@ -71,3 +71,103 @@ with a memory buffer. In this mode, data written to the USRP is actually stored
 in a buffer, and read commands to the USRP simply pull data from this buffer.
 This was very useful in early testing, and still may be useful in testing basic
 Transceiver and radioInterface functionality.
+
+
+[[backend_ipc]]
+=== `osmo-trx-ipc` Inter Process Communication backend
+
+This OsmoTRX model provides its own Inter Process Communication (IPC) interface
+to drive the radio device driver (from now on the Driver), allowing for third
+party processes to implement the lowest layer device-specific bits without being
+affected by copyleft licenses of OsmoTRX.
+
+For more information on such interface, see section <<ipc_if>>.
+
+[[fig-backend-ipc]]
+.Architecture with _osmo-trx-ipc_ and its IPC _Driver_
+[graphviz]
+----
+digraph G {
+        rankdir=LR;
+        MS0 [label="MS"];
+        MS1 [label="MS"];
+        OsmoTRX [label="osmo-trx-ipc", color=red];
+        BTS;
+
+        subgraph cluster_ipc_driver {
+                label = "IPC Driver";
+                color=red;
+                RE [label = "Radio Equipment"];
+                REC [label="Radio Equipment Controller"];
+                RE->REC;
+        }
+
+        REC->OsmoTRX [label="IPC Interface", color=red];
+
+        MS0->RE [label="Um"];
+        MS1->RE [label="Um"];
+        OsmoTRX->BTS [label="bursts over UDP"];
+
+}
+----
+
+A sample config file for this OsmoTRX model can be found in _osmo-trx.git_ https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/doc/examples/osmo-trx-ipc/osmo-trx-ipc.cfg[doc/examples/osmo-trx-ipc/osmo-trx-ipc.cfg]
+
+In the config file, the following VTY command can be used to set up the IPC UD Master Socket _osmo-trx-ipc_ will connect to at startup:
+
+.Example: _osmo-trx-ipc_ will connect to UD Master Socket /tmp/ipc_sock0 upon startup
+----
+dev-args ipc_msock=/tmp/ipc_sock0
+----
+
+==== ipc-device-test
+
+When built with `--with-ipc --with-uhd` configure options, _osmo-trx.git_ will
+build the test program called _ipc-driver-test_. This program implements the
+_Driver_ side of the osmo-trx-ipc interface (see <<ipc_if>> for more
+information) on one side, and also interacts internally with UHD (eg B210 as
+when using osmo-trx-uhd).
+
+You can use this small program as a reference to:
+
+* Test and experiment with _osmo-trx-ipc_.
+
+* Write your own IPC _Driver_ connecting to osmo-trx-ipc.
+
+[[fig-backend-ipc-device-test]]
+.Architecture with _osmo-trx-ipc_ and ipc-device-test as IPC _Driver_
+[graphviz]
+----
+digraph G {
+        rankdir=LR;
+        MS0 [label="MS"];
+        MS1 [label="MS"];
+        SDR;
+        ipc_device_test[label = "ipc-device-test", color=red];
+        OsmoTRX [label="osmo-trx-ipc", color=red];
+        BTS;
+
+        MS0->SDR [label="Um"];
+        MS1->SDR [label="Um"];
+        SDR->ipc_device_test [label="UHD"];
+        ipc_device_test->OsmoTRX [label="IPC Interface", color=red];
+        OsmoTRX->BTS [label="bursts over UDP"];
+}
+----
+
+The code for this app is found here:
+
+* https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc/ipc-driver-test.h[Transceiver52M/device/ipc/ipc-driver-test.h]
+
+* https://gitea.osmocom.org/cellular-infrastructure/osmo-trx/src/branch/master/Transceiver52M/device/ipc/ipc-driver-test.c[Transceiver52M/device/ipc/ipc-driver-test.c]
+
+Those files use the server-side (_Driver_ side) code to operate the Posix Shared
+Memory region implemented in files `shm.c`, `shm.h`, `ipc_shm.c` and `ipc_shm.h`
+in the same directory.
+
+Most of the code in that same directory is deliverately released under a BSD
+license (unlike most of _osmo-trx.git_), allowing third parties to reuse/recycle
+the code on their implemented _Driver_ program no matter it being proprietary or
+under an open license. However, care must be taken with external dependencies,
+as for instance shm.c uses the talloc memory allocator, which is GPL licensed
+and hence cannot be used in a proprietary driver.

doc/manuals/osmotrx-usermanual.adoc

@@ -35,6 +35,8 @@ include::./common/chapters/vty_cpu_sched.adoc[]
 
 include::./common/chapters/trx_if.adoc[]
 
+include::{srcdir}/chapters/ipc_if.adoc[]
+
 include::./common/chapters/port_numbers.adoc[]
 
 include::./common/chapters/bibliography.adoc[]

tests/CommonLibs/Makefile.am

@@ -1,7 +1,25 @@
 include $(top_srcdir)/Makefile.common
 
-AM_CPPFLAGS = -Wall -I$(top_srcdir)/CommonLibs $(STD_DEFINES_AND_INCLUDES) $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS) -g
-AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LIBOSMOCTRL_LIBS) $(LIBOSMOVTY_LIBS)
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/CommonLibs \
+	$(STD_DEFINES_AND_INCLUDES) \
+	$(NULL)
+
+AM_CXXFLAGS = \
+	-Wall -g \
+	$(LIBOSMOCORE_CFLAGS) \
+	$(LIBOSMOCTRL_CFLAGS) \
+	$(LIBOSMOVTY_CFLAGS) \
+	$(NULL)
+
+AM_LDFLAGS = -no-install
+
+LDADD = \
+	$(COMMON_LA) \
+	$(LIBOSMOCORE_LIBS) \
+	$(LIBOSMOCTRL_LIBS) \
+	$(LIBOSMOVTY_LIBS) \
+	$(NULL)
 
 EXTRA_DIST = BitVectorTest.ok \
              PRBSTest.ok \
@@ -20,21 +38,16 @@ check_PROGRAMS = \
 	LogTest
 
 BitVectorTest_SOURCES = BitVectorTest.cpp
-BitVectorTest_LDADD = $(COMMON_LA)
 
 PRBSTest_SOURCES = PRBSTest.cpp
 
 InterthreadTest_SOURCES = InterthreadTest.cpp
-InterthreadTest_LDADD = $(COMMON_LA)
-InterthreadTest_LDFLAGS = -lpthread $(AM_LDFLAGS)
+InterthreadTest_LDADD = $(LDADD) -lpthread
 
 TimevalTest_SOURCES = TimevalTest.cpp
-TimevalTest_LDADD = $(COMMON_LA)
 
 VectorTest_SOURCES = VectorTest.cpp
-VectorTest_LDADD = $(COMMON_LA)
 
 LogTest_SOURCES = LogTest.cpp
-LogTest_LDADD = $(COMMON_LA)
 
 MOSTLYCLEANFILES += testSource testDestination

tests/Transceiver52M/Makefile.am

@@ -1,6 +1,13 @@
 include $(top_srcdir)/Makefile.common
 
-AM_CFLAGS = -Wall -I$(top_srcdir)/Transceiver52M -I$(top_srcdir)/Transceiver52M/arch/common $(STD_DEFINES_AND_INCLUDES) -g
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/Transceiver52M \
+	-I$(top_srcdir)/Transceiver52M/arch/common \
+	$(STD_DEFINES_AND_INCLUDES) \
+	$(NULL)
+
+AM_CFLAGS = -Wall -g
+AM_LDFLAGS = -no-install
 
 EXTRA_DIST = convolve_test.ok convolve_test_golden.h
 
@@ -20,10 +27,11 @@ endif
 if DEVICE_LMS
 check_PROGRAMS += LMSDeviceTest
 LMSDeviceTest_SOURCES = LMSDeviceTest.cpp
-LMSDeviceTest_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LMS_LIBS)
 LMSDeviceTest_LDADD = \
 	$(top_builddir)/Transceiver52M/device/lms/libdevice.la \
+	$(LIBOSMOCORE_LIBS) \
 	$(COMMON_LA) \
-	$(LMS_LIBS)
-LMSDeviceTest_CPPFLAGS = $(AM_CPPFLAGS) $(LMS_CFLAGS)
+	$(LMS_LIBS) \
+	$(NULL)
+LMSDeviceTest_CXXFLAGS = $(AM_CFLAGS) $(LMS_CFLAGS)
 endif

utils/Makefile.am

@@ -1,6 +1,8 @@
 AM_CPPFLAGS = $(LIBOSMOCODING_CFLAGS)
 AM_CFLAGS = -Wall
 
+DIST_SUBDIRS = va-test
+
 EXTRA_DIST = clockdump.sh matlab
 
 noinst_PROGRAMS = osmo-prbs-tool

utils/va-test/Makefile.am

@@ -0,0 +1,17 @@
+include $(top_srcdir)/Makefile.common
+
+noinst_PROGRAMS = osmo-burst-gen
+
+osmo_burst_gen_SOURCES = burst-gen.cpp \
+	${top_srcdir}/Transceiver52M/grgsm_vitac/grgsm_vitac.cpp \
+	${top_srcdir}/Transceiver52M/grgsm_vitac/viterbi_detector.cc
+osmo_burst_gen_LDADD = \
+	${top_srcdir}/Transceiver52M/libtransceiver_common.la \
+	$(ARCH_LA) \
+	$(GSM_LA) \
+	$(COMMON_LA)
+osmo_burst_gen_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) \
+	-I${top_srcdir}/Transceiver52M/arch/common \
+	-I${top_srcdir}/Transceiver52M/device/common \
+	-I${top_srcdir}/Transceiver52M
+

utils/va-test/burst-gen.cpp

@@ -0,0 +1,531 @@
+/*
+ * (C) 2023 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Eric Wild <ewild@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// this allows messing with the demod to check the detecton offset impact,
+// not intended for actual automated tests.
+
+#include "sigProcLib.h"
+
+extern "C" {
+#include "convert.h"
+#include <convolve.h>
+}
+
+#define _CRT_SECURE_NO_WARNINGS
+#include <algorithm>
+#include <string.h>
+#include <iomanip>
+#include <numeric>
+#include <memory>
+#include <iostream>
+#include <fstream>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <grgsm_vitac/grgsm_vitac.h>
+
+#define DO_RACH
+
+const int SAMPLE_SCALE_FACTOR = 1;
+
+template <typename DST_T, typename SRC_T, typename ST>
+void convert_and_scale(void *dst, void *src, unsigned int src_len, ST scale)
+{
+	for (unsigned int i = 0; i < src_len; i++)
+		reinterpret_cast<DST_T *>(dst)[i] = static_cast<DST_T>((reinterpret_cast<SRC_T *>(src)[i]) * scale);
+}
+template <typename DST_T, typename SRC_T>
+void convert_and_scale_default(void *dst, void *src, unsigned int src_len)
+{
+	return convert_and_scale<DST_T, SRC_T>(dst, src, src_len, SAMPLE_SCALE_FACTOR);
+}
+
+static const unsigned int txFullScale = (float)(1 << 14) - 1;
+// static const unsigned int rxFullScale = (float)(1 << 14) - 1;
+
+static const BitVector
+	gRACHBurstx("0011101001001011011111111001100110101010001111000110111101111110000111001001010110011000");
+
+static const BitVector gTrainingSequencex[] = {
+	BitVector("00100101110000100010010111"), BitVector("00101101110111100010110111"),
+	BitVector("01000011101110100100001110"), BitVector("01000111101101000100011110"),
+	BitVector("00011010111001000001101011"), BitVector("01001110101100000100111010"),
+	BitVector("10100111110110001010011111"), BitVector("11101111000100101110111100"),
+};
+
+struct mrv {
+	std::vector<char> bits;
+	signalVector *rvbuf;
+	std::unique_ptr<std::vector<std::complex<float>>> convolved;
+	// mrv(): bits(), demod_bits() {}
+	CorrType ct;
+};
+
+static mrv genRandNormalBurstx(int tsc, int sps, int tn)
+{
+	mrv retstruct;
+	int i = 0;
+	BitVector bits(148);
+
+	/* Tail bits */
+	for (; i < 3; i++)
+		bits[i] = 0;
+
+	/* Random bits */
+	for (int j = 0; i < 60; i++, j++)
+		bits[i] = rand() % 2;
+
+	/* Stealing bit */
+	bits[i++] = 0;
+
+	/* Training sequence */
+	for (int n = 0; i < 87; i++, n++)
+		bits[i] = gTrainingSequencex[tsc][n];
+
+	/* Stealing bit */
+	bits[i++] = 0;
+
+	/* Random bits */
+	for (; i < 145; i++)
+		bits[i] = rand() % 2;
+
+	/* Tail bits */
+	for (; i < 148; i++)
+		bits[i] = 0;
+
+	int guard = 8 + !(tn % 4);
+	auto r = modulateBurst(bits, guard, sps);
+
+	retstruct.rvbuf = r;
+	for (size_t i = 0; i < bits.size(); i++)
+		retstruct.bits.push_back(bits.bit(i) ? 1 : 0);
+	return retstruct;
+}
+
+static mrv genRandAccessBurstx(int delay, int sps, int tn)
+{
+	mrv retstruct;
+	int i = 0;
+	BitVector bits(88 + delay);
+
+	/* delay */
+	for (; i < delay; i++)
+		bits[i] = 0;
+
+	/* head and synch bits */
+	for (int n = 0; i < 49 + delay; i++, n++)
+		bits[i] = gRACHBurstx[n];
+
+	/* Random bits */
+	for (int j = 0; i < 85 + delay; i++, j++)
+		bits[i] = rand() % 2;
+
+	for (; i < 88 + delay; i++)
+		bits[i] = 0;
+
+	int guard = 68 - delay + !(tn % 4);
+	auto r = modulateBurst(bits, guard, sps);
+
+	retstruct.rvbuf = r;
+	for (size_t i = 0; i < bits.size(); i++)
+		retstruct.bits.push_back(bits.bit(i) ? 1 : 0);
+	return retstruct;
+}
+
+extern gr_complex d_acc_training_seq[N_ACCESS_BITS]; ///<encoded training sequence of a SCH burst
+extern gr_complex d_sch_training_seq[N_SYNC_BITS]; ///<encoded training sequence of a SCH burst
+extern gr_complex d_norm_training_seq[TRAIN_SEQ_NUM]
+				     [N_TRAIN_BITS]; ///<encoded training sequences of a normal and dummy burst
+
+void sv_write_helper(signalVector *burst, std::string fname)
+{
+	auto start = burst->begin();
+	auto n = burst->bytes();
+	char *data = reinterpret_cast<char *>(start);
+
+	const int len_in_real = burst->size() * 2;
+	auto cvrtbuf_tx_a = new int16_t[len_in_real];
+	convert_float_short(cvrtbuf_tx_a, (float *)burst->begin(), float(txFullScale), len_in_real);
+
+	std::ofstream fout;
+	fout.open(fname + ".cfile", std::ios::binary | std::ios::out);
+	fout.write(data, n);
+	fout.close();
+
+	fout.open(fname + ".cs16", std::ios::binary | std::ios::out);
+	fout.write((char *)cvrtbuf_tx_a, len_in_real * sizeof(uint16_t));
+	fout.close();
+	delete[] cvrtbuf_tx_a;
+}
+
+// borrowed from a real world burst..
+static std::vector<std::complex<float>> chan_im_resp = {
+	{ 4.1588e-05 + -0.000361925 },	{ 0.000112728 + -0.000289796 }, { 0.000162952 + -0.000169028 },
+	{ 0.000174185 + -2.54575e-05 }, { 0.000142947 + 0.000105992 },	{ 8.65919e-05 + 0.000187041 },
+	{ 4.15799e-05 + 0.000184346 },	{ 5.30207e-05 + 7.84921e-05 },	{ 0.000158877 + -0.000128058 },
+	{ 0.000373956 + -0.000407954 }, { 0.000680606 + -0.000712065 }, { 0.00102929 + -0.000979604 },
+	{ 0.00135049 + -0.00115333 },	{ 0.00157434 + -0.0011948 },	{ 0.00165098 + -0.00109534 },
+	{ 0.00156519 + -0.000878794 },	{ 0.0013399 + -0.000594285 },	{ 0.00102788 + -0.00030189 },
+	{ 0.000694684 + -5.58912e-05 }, { 0.000399328 + 0.000109463 }
+};
+
+// as above, downsampled to 1sps + just magnitude
+static std::vector<float> chan_im_resp_trunc = { 1., 0.20513351, 0.10020305, 0.11490235 };
+
+template <typename A, typename B>
+auto conv(const std::vector<A> &a, const std::vector<B> &b) -> std::unique_ptr<std::vector<A>>
+{
+	int data_len = a.size();
+	int conv_len = b.size();
+	int conv_size = conv_len + data_len - 1;
+	auto retv = std::make_unique<std::vector<A>>(conv_size);
+
+	for (int i = 0; i < data_len; ++i) {
+		for (int j = 0; j < conv_len; ++j) {
+			(*retv)[i + j] += a[i] * b[j];
+		}
+	}
+	return retv;
+}
+
+template <typename A>
+static auto conv(const A *a, int len, std::vector<float> &b)
+{
+	std::vector<A> aa(len);
+	std::copy_n(a, len, aa.begin());
+	std::reverse(b.begin(), b.end());
+	return conv(aa, b);
+}
+template <typename A>
+static auto conv(const A *a, int len, std::vector<A> &b)
+{
+	std::vector<A> aa(len);
+	std::copy_n(a, len, aa.begin());
+	std::reverse(b.begin(), b.end());
+	return conv(aa, b);
+}
+
+// signalvector is owning despite claiming not to, but we can pretend, too..
+static void dummy_free(void *wData){};
+static void *dummy_alloc(size_t newSize)
+{
+	return 0;
+};
+
+template <typename T>
+size_t read_from_file(std::string path, std::vector<T> &outvec)
+{
+	std::ifstream infile;
+	infile.open(path, std::ios::in | std::ios::binary);
+	if (infile.fail()) {
+		std::cout << " not found: " << path << std::endl;
+		exit(0);
+	}
+	infile.seekg(0, std::ios_base::end);
+	size_t fsize = infile.tellg();
+	auto fsize_in_T = fsize / sizeof(T);
+	infile.seekg(0, std::ios_base::beg);
+
+	outvec.resize(fsize_in_T);
+	infile.read(reinterpret_cast<char *>(&outvec[0]), fsize);
+	infile.close();
+	std::cout << "Read " << fsize << " from " << path << std::endl;
+	return fsize;
+}
+void demod_real_burst(int num = 0)
+{
+	auto path = "./nb_chunk_tsc7.cfile";
+	auto bitfile = "./demodbits_tsc7.s8";
+
+	std::vector<std::complex<float>> burstdata;
+	std::vector<char> bitdata;
+	read_from_file(path, burstdata);
+	read_from_file(bitfile, bitdata);
+
+	// print "known good" burst bits
+	std::cerr << "known bits:" << std::endl;
+	std::cerr << std::setw(5) << 0 << " - ";
+	for (auto i : bitdata)
+		std::cout << (i > 0 ? "1" : "0");
+	std::cerr << std::endl;
+	std::cerr << "demod tests sigproclib:" << std::endl;
+
+	auto ct = CorrType::TSC;
+	auto delay = 0;
+	auto tsc = 7;
+	int offset = 0;
+	auto cplx = reinterpret_cast<complex *>(&burstdata[offset]);
+	auto stdcplx = reinterpret_cast<std::complex<float> *>(&burstdata[offset]);
+	signalVector sv(&cplx[0], 0, burstdata.size() - offset, dummy_alloc, dummy_free);
+
+	struct estim_burst_params ebp;
+	auto rc = detectAnyBurst(sv, tsc, BURST_THRESH, 4, ct, 40, &ebp);
+
+	auto rxBurst = std::unique_ptr<SoftVector>(demodAnyBurst(sv, (CorrType)rc, 4, &ebp));
+	// print osmotrx sigproclib demod result
+	std::cerr << std::setw(5) << int(ebp.toa) << " o ";
+	for (ssize_t i = 0 + delay; i < 148 + delay; i++)
+		std::cout << (rxBurst->bit(i) ? "1" : "0");
+	std::cerr << std::endl;
+
+	std::cerr << "demod test va:" << std::endl;
+	std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
+	float ncmax;
+	char demodded_softbits[444];
+
+	// demod at known offset
+	{
+		auto inp = &stdcplx[29]; // known offset
+		auto normal_burst_startX = get_norm_chan_imp_resp(inp, &chan_imp_resp[0], &ncmax, tsc);
+		detect_burst_nb(inp, &chan_imp_resp[0], normal_burst_startX, demodded_softbits);
+
+		std::cerr << std::setw(5) << normal_burst_startX << " v ";
+		for (size_t i = 0; i < 148; i++)
+			std::cerr << (demodded_softbits[i] < 0 ? "1" : "0");
+		std::cerr << std::endl;
+	}
+	{
+		std::cerr << "-- va start offset loop --" << std::endl;
+		std::cerr << "offset/det offset/#errors/known^demod bits" << std::endl;
+		for (int i = 0; i < 34; i++) {
+			auto inp = &stdcplx[i];
+			auto conved_beg = inp;
+
+			auto me = get_norm_chan_imp_resp(conved_beg, &chan_imp_resp[0], &ncmax, tsc);
+			detect_burst_nb(conved_beg, &chan_imp_resp[0], me, demodded_softbits);
+			auto bitdiffarr = std::make_unique<char[]>(148);
+			for (size_t i = 0; i < 148; i++)
+				bitdiffarr.get()[i] = (demodded_softbits[i] < 0 ? 1 : 0) ^ (bitdata[i] > 0 ? 1 : 0);
+			auto ber = std::accumulate(bitdiffarr.get(), bitdiffarr.get() + 148, 0);
+
+			std::cerr << std::setw(3) << i << ": " << std::setw(3) << me << " v " << std::setw(3) << ber
+				  << " ";
+			for (size_t i = 0; i < 148; i++)
+				std::cerr << (bitdiffarr[i] ? "1" : "0");
+			std::cerr << std::endl;
+			// std::cerr << std::setw(4) << i << " (" << std::setw(4) << 29 - i << "):" << std::setw(4) << org
+			// 	  << " " << std::setw(4) << me << " y " << std::endl;
+		}
+	}
+}
+
+auto gen_burst(CorrType t, int delay, int tsc)
+{
+	mrv rs;
+	if (t == CorrType::RACH) {
+		rs = genRandAccessBurstx(delay, 4, tsc);
+
+	} else if (t == CorrType::TSC) {
+		rs = genRandNormalBurstx(tsc, 4, 0);
+	} else {
+		std::cerr << "wtf?" << std::endl;
+		exit(0);
+	}
+	rs.ct = t;
+
+	signalVector *burst = rs.rvbuf;
+	// sv_write_helper(burst, std::to_string(num));
+	// scaleVector(*burst, {1, 0});
+	const int len_in_real = burst->size() * 2;
+	auto cvrtbuf_tx_a = std::make_unique<short[]>(len_in_real);
+	auto cvrtbuf_rx_a = std::make_unique<float[]>(len_in_real);
+	auto rx_cfloat = reinterpret_cast<std::complex<float> *>(&cvrtbuf_rx_a[0]);
+
+	convert_float_short(cvrtbuf_tx_a.get(), (float *)burst->begin(), float(txFullScale), len_in_real);
+	convert_short_float(cvrtbuf_rx_a.get(), cvrtbuf_tx_a.get(), len_in_real);
+	for (int i = 0; i < len_in_real; i++) // scale properly!
+		cvrtbuf_rx_a[i] *= 1. / txFullScale;
+	auto conved = conv(rx_cfloat, burst->size(), chan_im_resp);
+
+	std::cerr << "-- generated " << (t == CorrType::RACH ? "RACH" : "TSC") << " burst --" << std::endl;
+	for (size_t i = 0; i < rs.bits.size(); i++)
+		std::cerr << (rs.bits[i] ? "1" : "0");
+	std::cerr << std::endl;
+	delete burst;
+	rs.convolved = std::move(conved);
+	return rs;
+}
+
+void demod_generated_burst(CorrType t)
+{
+	int tsc = 0;
+	int delay = 0;
+	auto rs = gen_burst(t, delay, tsc);
+	auto conved_beg = &(*rs.convolved)[0];
+
+	if (rs.ct == CorrType::RACH) {
+		std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
+		float ncmax;
+		char demodded_softbits[444];
+		int normal_burst_start = 0;
+		normal_burst_start = get_access_imp_resp(conved_beg, &chan_imp_resp[0], &ncmax, 0);
+		normal_burst_start = std::max(normal_burst_start, 0);
+		for (int j = 0; j < 4; j++) {
+			for (int start_val = 0; start_val < 16; start_val++) {
+				auto bitdiffarr = std::make_unique<char[]>(rs.bits.size());
+				detect_burst_ab(conved_beg, &chan_imp_resp[0], normal_burst_start + j,
+						demodded_softbits, start_val);
+
+				for (size_t i = 0; i < rs.bits.size(); i++)
+					bitdiffarr.get()[i] = (demodded_softbits[i] < 0 ? 1 : 0) ^ rs.bits[i];
+				auto ber = std::accumulate(bitdiffarr.get(), bitdiffarr.get() + rs.bits.size(), 0);
+
+				std::cerr << "ber " << std::setw(4) << ber << " bo:" << std::setw(4) << j
+					  << " vas:" << std::setw(4) << start_val << " ";
+				// for (size_t i = 0; i < rs.num_bits; i++)
+				// 	std::cerr << (demodded_softbits[i] < 0 ? "1" : "0");
+				// std::cerr << std::endl;
+				// std::cerr << "d " << std::setw(4) << ber << " ";
+				for (size_t i = 0; i < rs.bits.size(); i++)
+					std::cerr << (bitdiffarr.get()[i] ? "1" : "0");
+				std::cerr << std::endl;
+
+				// std::cerr << "v " << std::setw(4) << j << std::setw(4) << start_val << " ";
+				// for (size_t i = 0; i < rs.num_bits; i++)
+				// 	std::cerr << (demodded_softbits[i] < 0 ? "1" : "0");
+				// std::cerr << std::endl;
+				// std::cerr << "d " << std::setw(4) << ber << " ";
+				// for (size_t i = 0; i < rs.num_bits; i++)
+				// 	std::cerr << (ptr.get()[i] ? "1" : "0");
+				// std::cerr << std::endl;
+			}
+		}
+
+	} else {
+		std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
+		float ncmax;
+		char demodded_softbits[444];
+
+		auto normal_burst_start = get_norm_chan_imp_resp(conved_beg, &chan_imp_resp[0], &ncmax, tsc);
+		detect_burst_nb(conved_beg, &chan_imp_resp[0], normal_burst_start + 0, demodded_softbits);
+		std::cerr << "toa " << std::setprecision(2) << normal_burst_start << std::endl;
+
+		std::cerr << "vita ";
+		for (size_t i = 0; i < rs.bits.size(); i++)
+			std::cerr << (demodded_softbits[i] < 0 ? "1" : "0");
+		std::cerr << std::endl;
+		std::cerr << "diff ";
+		for (size_t i = 0; i < rs.bits.size(); i++)
+			std::cerr << ((demodded_softbits[i] < 0 ? 1 : 0) ^ rs.bits[i] ? "1" : "0");
+		std::cerr << std::endl;
+	}
+
+	struct estim_burst_params ebp;
+	char demodded_softbits[444];
+	complex *rx_sigproc_cfloat = reinterpret_cast<complex *>(conved_beg);
+	signalVector sv(rx_sigproc_cfloat, 0, rs.convolved->size(), dummy_alloc, dummy_free);
+
+	auto rc = detectAnyBurst(sv, tsc, BURST_THRESH, 4, rs.ct, 40, &ebp);
+	auto rxBurst = std::unique_ptr<SoftVector>(demodAnyBurst(sv, (CorrType)rc, 4, &ebp));
+
+	std::cerr << "toa " << std::setprecision(2) << ebp.toa << std::endl;
+
+	for (ssize_t i = 0; i < delay; i++) // maybe pad rach op?
+		demodded_softbits[i] = 0;
+	for (size_t i = 0 + delay; i < rs.bits.size() + delay; i++)
+		demodded_softbits[i] = (rxBurst->bit(i) ? 1 : 0);
+
+	std::cerr << "sigp ";
+	for (size_t i = 0; i < rs.bits.size(); i++)
+		std::cerr << (demodded_softbits[i] ? "1" : "0");
+	std::cerr << std::endl;
+
+	std::cerr << "diff ";
+	for (size_t i = 0; i < rs.bits.size(); i++)
+		std::cerr << (demodded_softbits[i] ^ rs.bits[i] ? "1" : "0");
+	std::cerr << std::endl;
+}
+
+void demod_test_offsets()
+{
+	const int tsc = 0;
+	const int delaybuffer_realoffset = 100;
+
+	{
+		auto rs = gen_burst(CorrType::RACH, 0, tsc);
+		typeof(*rs.convolved) delay_buffer(rs.convolved->size() * 2); // plenty of space..
+
+		for (int delay = -10; delay < 60; delay++) {
+			std::fill(delay_buffer.begin(), delay_buffer.end(), 0);
+			std::copy(rs.convolved->begin(), rs.convolved->end(),
+				  delay_buffer.begin() + delaybuffer_realoffset + delay);
+
+			auto conved_beg = &delay_buffer[delaybuffer_realoffset];
+
+			std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
+			float ncmax;
+			auto va_burst_start = get_access_imp_resp(conved_beg, &chan_imp_resp[0], &ncmax, 60);
+
+			complex *rx_sigproc_cfloat = reinterpret_cast<complex *>(conved_beg);
+			struct estim_burst_params ebp;
+			signalVector sv(rx_sigproc_cfloat, 0, rs.convolved->size(), dummy_alloc, dummy_free);
+			detectAnyBurst(sv, tsc, BURST_THRESH, 4, rs.ct, 60, &ebp);
+			std::cerr << "delay:" << std::setw(3) << std::setprecision(2) << delay;
+			std::cerr << " va: " << std::setw(3) << std::setprecision(2) << va_burst_start;
+			std::cerr << " sg: " << std::setw(3) << std::setprecision(2) << ebp.toa;
+			std::cerr << " d: " << std::setw(3) << std::setprecision(2) << (ebp.toa * 4) - va_burst_start;
+			std::cerr << " ! " << float(va_burst_start + 13) / 4 << std::endl;
+		}
+	}
+	{
+		auto rs = gen_burst(CorrType::TSC, 0, tsc);
+		typeof(*rs.convolved) delay_buffer(rs.convolved->size() * 2); // plenty of space..
+
+		for (int delay = -10; delay < 10; delay++) {
+			std::fill(delay_buffer.begin(), delay_buffer.end(), 0);
+			std::copy(rs.convolved->begin(), rs.convolved->end(),
+				  delay_buffer.begin() + delaybuffer_realoffset + delay);
+
+			auto conved_beg = &delay_buffer[delaybuffer_realoffset];
+
+			std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR];
+			float ncmax;
+			auto va_burst_start = get_norm_chan_imp_resp(conved_beg, &chan_imp_resp[0], &ncmax, tsc);
+
+			complex *rx_sigproc_cfloat = reinterpret_cast<complex *>(conved_beg);
+			struct estim_burst_params ebp;
+			signalVector sv(rx_sigproc_cfloat, 0, rs.convolved->size(), dummy_alloc, dummy_free);
+			detectAnyBurst(sv, tsc, BURST_THRESH, 4, rs.ct, 60, &ebp);
+			std::cerr << "delay:" << std::setw(3) << std::setprecision(2) << delay;
+			std::cerr << " va: " << std::setw(3) << std::setprecision(2) << va_burst_start;
+			std::cerr << " sg: " << std::setw(3) << std::setprecision(2) << ebp.toa;
+			std::cerr << " d: " << std::setw(3) << std::setprecision(2) << (ebp.toa * 4) - va_burst_start;
+			std::cerr << " ! " << float(va_burst_start + 19) / 4 << std::endl;
+		}
+	}
+}
+
+int main()
+{
+	convolve_init();
+	convert_init();
+	sigProcLibSetup();
+	initvita();
+
+	for (int i = 0; i < 1; i++) {
+		demod_real_burst(i);
+		demod_generated_burst(CorrType::RACH);
+		demod_generated_burst(CorrType::TSC);
+		demod_test_offsets();
+	}
+}